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Dr. A S Chauhan

MBBS

Radiologist, Delhi

38 Years Experience
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Dr. A S Chauhan MBBS Radiologist, Delhi
38 Years Experience
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I'm a caring, skilled professional, dedicated to simplifying what is often a very complicated and confusing area of health care....more
I'm a caring, skilled professional, dedicated to simplifying what is often a very complicated and confusing area of health care.
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Dr. A S Chauhan is one of the best Radiologists in Paschim Vihar, Delhi. He has been a successful Radiologist for the last 38 years. He has completed MBBS . He is currently associated with Dr A S Chauhan in Paschim Vihar, Delhi. Book an appointment online with Dr. A S Chauhan and consult privately on Lybrate.com.

Lybrate.com has a nexus of the most experienced Radiologists in India. You will find Radiologists with more than 29 years of experience on Lybrate.com. You can find Radiologists online in Delhi and from across India. View the profile of medical specialists and their reviews from other patients to make an informed decision.

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What You Need To Know About Breast Cancer Surgery?

FAIS, FIAGES, MS - General Surgery, MBBS
General Surgeon, Noida
What You Need To Know About Breast Cancer Surgery?

With the recent number of breast cancer cases on the rise, it is important that we should get the examination done on a regular basis as a preventive measure. Even if someone is suffering from it, it is important that we should make an effort and learn about.

If you have breast cancer then a surgery will be part of your treatment. Based on the condition, surgery will be carried out due to any of the following reasons:
1. To remove the cancerous tissues from the breast
2. To reconstruct the breast once the cancer is removed
3. To check whether the cancer has spread to the lymph nodes below the arm
4. To treat symptoms of cancer that has progressed to an advanced stage

Breast cancer surgery may be classified into two types
1. Mastectomy: Mastectomy involves removing the entire breast; tissues in the adjoining region may also be removed. A double mastectomy is a procedure where both the breasts are removed.
2. Breast-conserving surgery: In this surgery, only parts of the breast affected by cancer are removed. The area of the breast that is to be removed will depend on the severity of the cancer. Some healthy tissues may also be removed in this surgery.

Usually, if a woman is in the initial stages of cancer then she may opt for the latter as it entails removing parts of the breast. They may also undergo radiation therapy along with these surgeries.
For checking if the cancer has spread to the lymph nodes below the arm, the lymph nodes are removed from the body. Once they are removed, they are studied under a microscope to check if it has spread, if yes then the extent of their damage. This procedure is carried out along with the surgery to remove the cancer.

Once the mastectomy procedure is completed, you can opt for a breast reconstruction surgery to rebuild the area. You may opt for this procedure at the time of breast cancer removal or at a later stage. If you are considering breast reconstruction surgery then you should discuss it with your surgeon.

Surgery is sometimes not used to treat cancer, but in slowing the progression of cancer or even reducing its symptoms.It is important you talk to your surgeon before the procedure to understand the goal of the surgery.

In case you have a concern or query you can always consult an expert & get answers to your questions!

2568 people found this helpful

Treatment Of Uterine Cysts With Homeopathy

MD - Homeopathy, BHMS
Homeopath, Gurgaon
Treatment Of Uterine Cysts With Homeopathy

Uterine cysts are a type of cysts or tumours, which grow in the uterus. This is prevalent in women when they are near their childbearing years. Uterine cysts have some typical symptoms, which would let you know when to consult a medical practitioner for further help. It would cause excessive bleeding for a long duration of time. There is bleeding from the uterus in between your menstrual cycles. At times, it becomes very difficult to empty your bladder and irritation and discomfort are caused. It also leads to constipation. These are frequent symptoms, which accompany uterine cysts. These types of cysts are almost always non-cancerous, but it is beneficial to take an expert advice on that matter. Homeopathy is a great option to treat such cysts.

Homeopathy is becoming increasingly popular throughout the entire world. Now it is time to prove to the world what homeopathy can offer in surgical diseases. Homeopathic medicines cannot take the place of surgery but can be of great help to the patients who do not want to go for surgery or cannot be operated upon due to various medical reasons. There are specific medications to treat cysts through homeopathy.

Some of them are:

  1. Calcarea Carbonica: This medicine is suitable for those who bleed profusely during their menstrual cycle. Such excessive bleeding causes shivers and shrills in them, making them more prone to anaemia. In fact, excessive bleeding also influences their fertility cycles. This medicine is administered on overweight women who suffer from uterine cysts.

  2. Thlaspi Bursa Pastoris: This is prescribed to women who experience frequent menstrual cycles within short intervals. In fact, one does not even recover from the shock of the previous cycle and the new one starts. It is usually accompanied by excessive pain in the uterus. This medicine not only treats the cysts, but also the frequent period cycles and pain in the uterus.

  3. Trillium Pendulum: At times, due to excessive bleeding from the uterus, the patient suffers from fainting spells. Such cysts are also characterised by bright red blood flow during the menstrual cycle. These are the two main symptoms to administer this medicine on the individual.

  4. Fraxinus Americana: Apart from irregular periods with pain in the uterus, it is also followed by breaking down spells. One experiences cramps in the feet during this type of cyst. In such conditions, the best natural homeopathic therapy that can be administered is Fraxinus Americana.

  5. Calcarea Fluorica: This is a common medicine which is given to those patients who have extremely large tumours. These tumours are also characterised by their unique hardness.

Uterine cysts are a common problem in women and can be treated effectively. One needs to be alert about the symptoms and must immediately report to a specialized homeopathic practitioner for an effective administration of medicines, which may lead to a successful cure.   

3295 people found this helpful

All About Breast Cancer

MS, MBBS
Gynaecologist, Delhi
All About Breast Cancer

Breast cancer is a type of cancer, which occurs due to the development of cancerous cells in breasts. Women are usually affected by breast cancer and breast cancer is one of the most common forms of cancer after skin cancer. Usually fatal if not diagnosed in its early stage, breast cancer is a very serious medical ailment. Read on more to find all about the different symptoms, causes, preventive measures and treatment of breast cancer.

Symptoms: Breast cancer has few distinct characteristics and if you have a few or all the following symptoms you could be more likely to suffer from breast cancer. 

  • The formation of a lump in your breast, which is different from the surrounding tissue and usually more thickened.
  • The discharge of bloody fluid  material from the nipples.
  • Sudden change of the size, shape and appearance of the breast.
  • Certain distinct changes to the skin over the breast for example an indentation in the skin similar to that of a dimple.
  • Appearance of an extra nipple which is inverted.
  • If the darkened area around the nipples known as the areola is flaking or peeling off. 

Causes: Studies and researches remain inconclusive on what causes breast cancer. Breast cancer occurs due to abnormal division of the cells located in the breast, which over time accumulate and form lumps. They
might spread to other parts of the body. Breast cancer is caused mainly due to a complex interaction of personal genetics, environment and lifestyle choices. Breast cancer can also be caused due to genetics as about 5% to 10% of cases are due to gene mutations which pass onto generations.

Risk factors: There are certain factors, which increase the probability of contracting breast cancer. Increasing age, personal and family history of breast cancer, obesity, radiation exposure, pregnancy at an older age, postmenopausal hormone therapy are some of the factors that increase the chances of breast cancer.

Treatment: Several forms of surgical methods exist to treat breast cancer. Depending on the condition and spread of the disease a suitable surgery is performed. These include mastectomy, lumpectomy, axillary lymph node dissection and removal of both breasts. Other forms of treatment include chemotherapy or the use of high doses of drugs to destroy cancerous cells. Radiation therapy where X-rays are used to destroy the cancer cells is also effective.

3359 people found this helpful

Breast Cancer - Causes, Symptoms And Ayurvedic Treatment

Bachelor of Ayurveda, Medicine and Surgery (BAMS), MS - Shalya Tantra
Ayurveda, Gurgaon
Breast Cancer - Causes, Symptoms And Ayurvedic Treatment

Breast cancer, is a type of cancer, which is common to women, where cancer cells grow on the breasts or the female mammary gland. It starts out with the formation of a small lump in your breast and can spread out to your other organs very rapidly. It generally affects women above forty years of age. Breast cancer can be classified into two types. They can either start forming on the inner linings of your milk ducts ( known as Ductal carcinoma) or in the lobules which supply milk (known as Lobular carcinoma).

There are many causes responsible for breast cancer they are mentioned below

  • Obesity or post-menopausal obesity (Learn more about Heart Diseases Post Menopause)
  • Exposure to frequent radiation (X-ray)
  • Consumption of alcohol
  • Being taller than average
  • Start of periods at an early age
  • Late menopause
  • Hormone replacement therapy
  • Consumption of birth control pills

The most common symptoms of breast cancer are as follows

  1. Formation of a lump in your breast
  2. Swelling or shrinking of your breast
  3. Change of size, shape and color of your nipple
  4. Blood or milk discharge from the nipple
  5. Breast pain
  6. Itching sensation
  7. Appearance of rashes (Learn more about to maintain the skin health)

Breast cancer if not diagnosed and treated at an early stage may turn out to be fatal. Ayurveda offers promising cures for breast cancer.

A few of the Ayurvedic remedies are mentioned below

  1. Include foods, which are well supplied with vitamin D in your diet. Researches show that women with less amount of vitamin D in their bodies are more likely to develop breast cancer. Consider including foods like eggs, orange juice, dairy products and fish like salmon in your diet.
  2. Drink more of green tea as it has anti cancer properties.
  3. Exercises like walking, yoga, meditation and certain breast exercises can help you to relax the pain sensation, reduce stress and also get cured.
  4. Incorporate bitter gourd in your diet. Researches show that bitter gourd can kill those cancer cells, which cause breast cancer.
  5. Ayurvedic herbs like Ashwagandha, tulsi, curcumin have certain properties that can destroy cancer cells.

If you wish to discuss about any specific problem, you can consult an Ayurveda.

5047 people found this helpful

How Does Extracorporeal Shock Wave Therapy Help Your Muscles and Bones?

Fellowship in Joint Replacement, Fellowship in Hand Surgery, MS - Orthopaedics, MBBS
Orthopedist, Bangalore
How Does Extracorporeal Shock Wave Therapy Help Your Muscles and Bones?

Extracorporeal Shock Wave Therapy (ESWT) is a highly effective and innovative treatment option in a variety of fields, from urology to cosmetology including orthopedics. This is a non-invasive method that employs high-energy shockwaves to bring about the healing of the affected tissues. It has been found to provide good results for recalcitrant orthopaedic problems like frozen shoulder to certain chronic degenerative or tendon conditions such as Achilles tendinitis (injury of the Achilles' tendon due to overuse) and plantar fasciitis in heel pain.

How does it work?

The procedure is basically an outpatient/ daycare job. It involves the application of a non-invasive probe to the affected tissue. This is followed by the external generation of shockwaves focused on the target area. The shockwaves cause a force to be created that brings about healing. Although it's still not clear as to why this kind of therapy works, the dominant understanding is that shockwaves render an improvement in the flow of blood so as to promote the body to fix and heal itself.

Depending on individual cases, high or low energy waves may be employed. While pain may occur during the transmission of high energy waves and would require short general anaesthesia, low-energy ESWT is carried out without anesthesia.

What problems can this form of therapy effectively tackle?

ESWT can be used to treat a number of musculoskeletal disorders. From plantar fasciitis (heel pain), tennis elbow, shoulder rotator cuff, degenerated tendons (Achilles' tendon) to hip and knee pain, the therapy has been found to reduce pain as well as accelerate healing in individuals.

Complications are very few and far between with this therapy. Individuals who suffer from hypersensitivity or poor sensation in the affected area are usually not recommended this procedure. Even individuals with heart conditions, seizures and open sores need to consult a doctor before going forward with the therapy.

The therapy has also been found to be very effective in bone healing as well as treatment of bone necrosis (a disease that occurs due to permanent or temporary loss of blood flow to the bones). Additionally in place of surgery, ESWT may also be a valuable option for non-healing fractures. In case you have a concern or query you can always consult an expert & get answers to your questions!

2673 people found this helpful

Fibroids In The Uterus - How Myomectomy Can Cure It?

MBBS, DGO, FICOG, Master of Population Studies (MPS)
Gynaecologist, Ghaziabad
Fibroids In The Uterus - How Myomectomy Can Cure It?

Fibroids are non-cancerous growth that develop in the uterus in varying sizes. Fibroids do not usually show symptoms, but if they are large they may cause severe pain in the abdomen, heavy menstrual bleeding, bloating, infertility or complications during pregnancy. Several factors may lead to the formation of fibroids, including hormones, family history, and pregnancy.

What is myomectomy?

Myomectomy is the surgical procedure which is used for removing fibroids from the uterus. It is a safe method that allows women to become pregnant in future. Gonadotropin-releasing hormone analogue therapy, performed before myomectomy helps in lowering the estrogen level and also controls anemia by stopping uterine bleeding. The different surgical methods for myomectomy include:

  • Hysteroscopy, involving the insertion of a lighted viewing instrument into the uterus
  • Laparoscopy, involving the insertion of a lighted viewing instrument and one or more incisions in the abdomen
  • Laparotomy, involving a larger incision made in the abdomen

Why is the surgery performed?

Myomectomy treats fibroids while preserving the uterus. It is a viable option for those who have:

  • Anemia which cannot be controlled with medicines
  • Pain which cannot be tackled with medicines
  • A fibroid that can cause infertility or increases the risk of miscarriages

How well does it work?

  • Pregnancy: myomectomy is the only treatment for treating fibroids that improve your chances of having a baby. The method is effective for treating submucosal fibroid. A cesarean section is required for delivery after performing a myomectomy.
  • Recurrence: recurrence of fibroids after myomectomy is really low. It is possible in rare cases, depending on what the original fibroid problem was. Large and numerous fibroids have a greater risk of recurrence. Consult an expert & get answers to your questions!
2420 people found this helpful

Causes, Types And Treatment Of Bone Fracture!

Diploma In Orthopaedics (D. Ortho), DNB (Orthopedics), Diploma SICOT, Fellowship in Spine Surgery, Fellowship in Endoscopic Spine Surgery
Orthopedist, Vadodara
Causes, Types And Treatment Of Bone Fracture!

Broken bone is commonly known as bone fracture a d it occurs when an exorbitant amount of force is applied causing the bone to split or shatter. While some minor fractures lead to cracks and crannies, others may lead to complete breakage of the bones. Despite being hard, bones are formed in such a way that they can absorb pressure to only a certain extent, beyond which they break. Statistically, the incidence of broken bones are most common in children and in old age people.

Causes of Bone Fracture
Bone fracture can be caused due to a number of reasons; both intentional and accidental. Some of them include:
1. Accidents and injuries: Sports injuries, being hit by a car and tripping and falling are some of the typical episodes.
2. Old age: Diseases such as osteoporosis and brittle bone disease are common in aged people. As bones tend to become more fragile among the aged, they are at a greater chance of bone fractures.

Type of bone fractures
Primarily bone fractures are of four types, based on the way the bone splits. They are:

  1. Complete fracture: This type of fracture refers to a complete breakage of the bone wherein the fracture may occur at various parts of the bone.
  2. Incomplete fracture: In this type of fracture, the bone partially breaks instead of splitting entirely.
  3. Compound fractures: This is a type of a fracture wherein the bone breaks past the skin. It is also known as an open fracture.
  4. Simple fracture: In this type of a fracture, the bone breaks without causing an open wound on the skin.

Treatment of bone fractures
In case of a broken bone, the immediate course of action would be to reach for the first aid box. This can be done to stabilize the bone prior to hospitalization. Icing the injury, elevating the injured area to prevent further swelling and covering the wound with bandages are common measures. In many cases, people also make household splints (made of newspapers) to keep the bone stabilized. Hospitalization and especially surgery, can be also opted for in case of severe fractures. Consult a doctor for more details.

2489 people found this helpful

Bone Cancer - Signs That Can Help You Identify!

M.Ch - Oncology, MS - General Surgery, M.B.B.S., F.I.A.G.E.S.
Oncologist, Bhopal
Bone Cancer - Signs That Can Help You Identify!

We have more than 200 bones in our body and each of them is susceptible to bone cancer. However, long bones in the arms and legs are most susceptible to this condition. Bone cancer can be primary or secondary. Primary bone cancer involves uncontrolled and abnormal cell division within the bones while secondary bone cancer refers to cancer that originated somewhere else in the body and later spread to the bones. While children and adults are equally at risk for primary bone cancer, adults and elderly people are more susceptible to secondary bone cancer. If diagnosed early enough, bone cancer can be treated and even cured with surgery, chemotherapy or radiation.

Hence it is essential to recognize the signs and symptoms of bone cancer. Here’s what you should look out for.

  1. Pain in Bones: Pain is one the primary symptoms of bone cancer. As the tumour grows larger, this pain can become more intense. In its early stages, the pain may be experienced as a dull ache inside the bone or the affected part of the body. It may also increase or decrease according to your activity level or may be experienced only at night. However, not all bone pains signify ‘cancer’ as this is also a symptom associated with osteoporosis.
  2. SwellingIn some cases, the abnormal growth of bone cells can result in the formation of a lump of mass that may be felt through the skin. In other cases, the affected area may also show signs of swelling.
  3. Breaking of the Bone: Cancer can weaken the bones and make them more brittle. This may make the bones more susceptible to fractures. A bone breaking in an area that has been painful or sore for a long period of time may be a sign of cancer. This is known as a pathologic fracture.
  4. Reduced Flexibility: If the tumour is located near a joint, it may affect the range of movements possible and make simple actions uncomfortable. For example, a tumour around the knee may make walking and climbing stairs a painful exercise.

Other symptoms to look out for are sudden and drastic weight loss, tiredness, excessive sweating at night, fever and difficulty breathing in case cancer has spread to other organs. Since many of these symptoms are common to other medical disorders, you should conduct a doctor immediately if you notice any of them. A physical examination and a couple of tests along with a biopsy will be required to confirm a diagnosis of bone cancer. Consult an Expert & get answers to your questions!

1951 people found this helpful

I have some disc problem, in MRI report L5S1, how can I remove this problem, which exercise is useful in this problem.

D.A.M.S( A. M.), D.AC/B.E.M.S
Acupressurist, Mumbai
I have some disc problem, in MRI report L5S1, how can I remove this problem, which exercise is useful in this problem.
You should take acupressure treatment and take biochemic kali phos 12x + calc. Flour12x. 4 tab each thrice a day with warm water and take it 5 day's
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Breast Cancer Prevention:

Homeopath,

Breast Cancer Prevention:

  1. Anything that increases your chance of developing cancer is called a cancer risk factor; anything that decreases your chance of developing cancer is called a cancer protective factor.

  2. Some risk factors for cancer can be avoided, but many cannot. For example, both smoking and inheriting certain genes are risk factors for some types of cancer, but only smoking can be avoided. Regular exercise and a healthy diet may be protective factors for some types of cancer. Avoiding risk factors and increasing protective factors may lower your risk but it does not mean that you will not get cancer. Different ways to prevent cancer are being studied, including:

  3. Changing lifestyle or eating habits. Avoiding things known to cause cancer. Taking medicine to treat a precancerous condition or to keep cancer from starting.


 

General information about breast cancer:

Key points:

  1. Breast cancer is a disease in which malignant (cancer) cells form in the tissues of the breast. Breast cancer is the second most common type of cancer in india

  2. Breast cancer is a disease in which malignant (cancer) cells form in the tissues of the breast.

  3. The breast is made up of lobes and ducts. Each breast has 15 to 20 sections called lobes, which have many smaller sections called lobules. Lobules end in dozens of tiny bulbs that can make milk. The lobes, lobules, and bulbs are linked by thin tubes called ducts.

  4. Enlarge Drawing of female breast anatomy showing the lymph nodes, nipple, areola, chest wall, ribs, muscle, fatty tissue, lobe, ducts, and lobules.

  5. Anatomy of the female breast. The nipple and areola are shown on the outside of the breast. The lymph nodes, lobes, lobules, ducts, and other parts of the inside of the breast are also shown.

  6. Each breast also has blood vessels and lymph vessels. The lymph vessels carry an almost colorless fluid called lymph. Lymph vessels lead to organs called lymph nodes. Lymph nodes are small bean-shaped structures that are found throughout the body. They filter lymph and store white blood cells that help fight infection and disease. Clusters of lymph nodes are found near the breast in the axilla (under the arm), above the collarbone, and in the chest.

     

Avoiding risk factors and increasing protective factors may help prevent cancer. The following are risk factors for breast cancer:

  1. Older agea personal history of breast cancer or benign (noncancer) breast diseasea family history of breast cancerinherited gene changesdense breasts

  2. Exposure of breast tissue to estrogen made in the bodytaking hormone therapy for symptoms of menopause radiation therapy


 

The following are protective factors for breast cancer:

  1. Less exposure of breast tissue to estrogen made by the bodytaking estrogen-only hormone therapy after hysterectomy,

  2. Estrogen-only hormone therapy after hysterectomyselective estrogen receptor modulatorsaromatase inhibitors and inactivators

  3. Risk-reducing mastectomy ovarian ablationgetting enough exercise


 

It is not clear whether the following affect the risk of breast cancer:

  1. Oral contraceptives

  2. Factors include smoking, being overweight, and not getting enough exercise. Increasing protective factors such as quitting smoking and exercising may also help prevent some cancers. Talk to your doctor or other health care professional about how you might lower your risk


 

Older age:

  1. Older age is the main risk factor for most cancers. The chance of getting cancer increases as you get older.

  2. A personal history of breast cancer or benign (noncancer) breast disease

     

Women with any of the following have an increased risk of breast cancer:

  1. A personal history of invasive breast cancer, ductal carcinoma in situ (dcis), or lobular carcinoma in situ (lcis). A personal history of benign (noncancer) breast disease.

  2. A family history of breast cancer

  3. Women with a family history of breast cancer in a first-degree relative (mother, sister, or daughter) have an increased risk of breast cancer.


 

Inherited gene changes:

  1. Women who have inherited changes in the brca1 and brca2 genes or in certain other genes have a higher risk of breast cancer, ovarian cancer, and maybe colon cancer. The risk of breast cancer caused by inherited gene changes depends on the type of gene mutation, family history of cancer, and other factors.

  2. Men who have inherited certain changes in the brca2 gene have a higher risk of breast, prostate, and pancreatic cancers, and lymphoma.


 

Dense breasts:

  1. Having breast tissue that is dense on a mammogram is a factor in breast cancer risk. The level of risk depends on how dense the breast tissue is. Women with very dense breasts have a higher risk of breast cancer than women with low breast density.

  2. Increased breast density is often an inherited trait, but it may also occur in women who have not had children, have a first pregnancy late in life, take postmenopausal hormones, or drink alcohol.

  3. Exposure of breast tissue to estrogen made in the body

  4. Estrogen is a hormone made by the body. It helps the body develop and maintain female sex characteristics. Being exposed to estrogen over a long time may increase the risk of breast cancer. Estrogen levels are highest during the years a woman is menstruating.


 

A woman's exposure to estrogen is increased in the following ways:

Early menstruation: beginning to have menstrual periods at age 11 or younger increases the number of years the breast tissue is exposed to estrogen. Starting menopause at a later age: the more years a woman menstruates, the longer her breast tissue is exposed to estrogen. Older age at first birth or never having given birth: because estrogen levels are lower during pregnancy, breast tissue is exposed to more estrogen in women who become pregnant for the first time after age 35 or who never become pregnant.

 

Taking hormone therapy for symptoms of menopause:

Hormones, such as estrogen and progesterone, can be made into a pill form in a laboratory. Estrogen, progestin, or both may be given to replace the estrogen no longer made by the ovaries in postmenopausal women or women who have had their ovaries removed. This is called hormone replacement therapy (hrt) or hormone therapy (ht). Combination hrt/ht is estrogen combined with progestin. This type of hrt/ht increases the risk of breast cancer. Studies show that when women stop taking estrogen combined with progestin, the risk of breast cancer decreases.


 

Radiation therapy to the breast or chest:

  1. Radiation therapy to the chest for the treatment of cancer increases the risk of breast cancer, starting 10 years after treatment. The risk of breast cancer depends on the dose of radiation and the age at which it is given. The risk is highest if radiation treatment was used during puberty, when breasts are forming.

  2. Radiation therapy to treat cancer in one breast does not appear to increase the risk of cancer in the other breast.

  3. For women who have inherited changes in the brca1 and brca2 genes, exposure to radiation, such as that from chest x-rays, may further increase the risk of breast cancer, especially in women who were x-rayed before 20 years of age.


 

Obesity:

Obesity increases the risk of breast cancer, especially in postmenopausal women who have not used hormone replacement therapy.


 

Drinking alcohol:

Drinking alcohol increases the risk of breast cancer. The level of risk rises as the amount of alcohol consumed rises.


 

The following are protective factors for breast cancer:

  1. Less exposure of breast tissue to estrogen made by the body

  2. Decreasing the length of time a woman's breast tissue is exposed to estrogen may help prevent breast cancer. Exposure to estrogen is reduced in the following ways:


 

Early pregnancy: estrogen levels are lower during pregnancy. Women who have a full-term pregnancy before age 20 have a lower risk of breast cancer than women who have not had children or who give birth to their first child after age 35. Breast-feeding: estrogen levels may remain lower while a woman is breast-feeding. Women who breastfed have a lower risk of breast cancer than women who have had children but did not breastfeed.

Taking estrogen-only hormone therapy after hysterectomy, selective estrogen receptor modulators, or aromatase inhibitors and inactivators


 

Estrogen-only hormone therapy after hysterectomy

Hormone therapy with estrogen only may be given to women who have had a hysterectomy. In these women, estrogen-only therapy after menopause may decrease the risk of breast cancer. There is an increased risk of stroke and heart and blood vessel disease in postmenopausal women who take estrogen after a hysterectomy.


 

Selective estrogen receptor modulators:

Tamoxifen and raloxifene belong to the family of drugs called selective estrogen receptor modulators (serms). Serms act like estrogen on some tissues in the body, but block the effect of estrogen on other tissues.


 

Treatment with tamoxifen lowers the risk of estrogen receptor-positive (er-positive) breast cancer and ductal carcinoma in situ in premenopausal and postmenopausal women at high risk. Treatment with raloxifene also lowers the risk of breast cancer in postmenopausal women. With either drug, the reduced risk lasts for several years or longer after treatment is stopped. Lower rates of broken bones have been noted in patients taking raloxifene.


 

Taking tamoxifen increases the risk of hot flashes, endometrial cancer, stroke, cataracts, and blood clots (especially in the lungs and legs). The risk of having these problems increases with age. Women younger than 50 years who have a high risk of breast cancer may benefit the most from taking tamoxifen. The risk of having these problems decreases after tamoxifen is stopped.


 

Taking raloxifene increases the risk of blood clots in the lungs and legs, but does not appear to increase the risk of endometrial cancer. In postmenopausal women with osteoporosis (decreased bone density), raloxifene lowers the risk of breast cancer for women who have a high or low risk of breast cancer. It is not known if raloxifene would have the same effect in women who do not have osteoporosis. Talk with your doctor about the risks and benefits of taking this drug.


 

Aromatase inhibitors and inactivators:

Aromatase inhibitors (anastrozole, letrozole) and inactivators (exemestane) lower the risk of a new breast cancer in women who have a history of breast cancer. Aromatase inhibitors also decrease the risk of breast cancer in women with the following conditions:

Postmenopausal women with a personal history of breast cancer. Women with no personal history of breast cancer who are 60 years and older, have a history of ductal carcinoma in situ with mastectomy, or have a high risk of breast cancer based on the gail model tool (a tool used to estimate the risk of breast cancer).

In women with an increased risk of breast cancer, taking aromatase inhibitors decreases the amount of estrogen made by the body. Before menopause, estrogen is made by the ovaries and other tissues in a woman's body, including the brain, fat tissue, and skin. After menopause, the ovaries stop making estrogen, but the other tissues do not. Aromatase inhibitors block the action of an enzyme called aromatase, which is used to make all of the body's estrogen. Aromatase inactivators stop the enzyme from working.


 

Possible harms from taking aromatase inhibitors include muscle and joint pain, osteoporosis, hot flashes, and feeling very tired.


 

Risk-reducing mastectomy:

Some women who have a high risk of breast cancer may choose to have a risk-reducing mastectomy (the removal of both breasts when there are no signs of cancer). The risk of breast cancer is much lower in these women and most feel less anxious about their risk of breast cancer. However, it is very important to have a cancer risk assessment and counseling about the different ways to prevent breast cancer before making this decision.


 

Ovarian ablation:

The ovaries make most of the estrogen that is made by the body. Treatments that stop or lower the amount of estrogen made by the ovaries include surgery to remove the ovaries, radiation therapy, or taking certain drugs. This is called ovarian ablation.


 

Premenopausal women who have a high risk of breast cancer due to certain changes in the brca1 and brca2 genes may choose to have a risk-reducing oophorectomy (the removal of both ovaries when there are no signs of cancer). This decreases the amount of estrogen made by the body and lowers the risk of breast cancer. Risk-reducing oophorectomy also lowers the risk of breast cancer in normal premenopausal women and in women with an increased risk of breast cancer due to radiation to the chest. However, it is very important to have a cancer risk assessment and counseling before making this decision. The sudden drop in estrogen levels may cause the symptoms of menopause to begin. These include hot flashes, trouble sleeping, anxiety, and depression. Long-term effects include decreased sex drive, vaginal dryness, and decreased bone density.


 

Getting enough exercise:

Women who exercise four or more hours a week have a lower risk of breast cancer. The effect of exercise on breast cancer risk may be greatest in premenopausal women who have normal or low body weight.


 

It is not clear whether the following affect the risk of breast cancer:

  1. Oral contraceptives

  2. Certain oral contraceptives contain estrogen. Some studies have shown that taking oral contraceptives (" the pill") may slightly increase the risk of breast cancer in current users. This risk decreases over time. Other studies have not shown an increased risk of breast cancer in women who take oral contraceptives.

  3. Progestin -only contraceptives that are injected or implanted do not appear to increase the risk of breast cancer. More studies are needed to know whether progestin-only oral contraceptives increase the risk of breast cancer.


 

Environment

  1. Studies have not proven that being exposed to certain substances in the environment, such as chemicals, increases the risk of breast cancer.

  2. Studies have shown that some factors do not affect the risk of breast cancer.


 

The following do not affect the risk of breast cancer:

  1. Having an abortion. Making diet changes such as eating less fat or more fruits and vegetables. Taking vitamins, including fenretinide (a type of vitamin a). Cigarette smoking, both active and passive (inhaling secondhand smoke). Using underarm deodorant or antiperspirant. Taking statins (cholesterol -lowering drugs). Taking bisphosphonates (drugs used to treat osteoporosis and hypercalcemia) by mouth or by intravenous infusion.

  2. Cancer prevention clinical trials are used to study ways to prevent cancer.

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