Lasers have come as a boon to treat many medical conditions very safely and effectively. They are absolutely indispensable for permanent hair removal, tattoo removal, freckle removal, skin rejuvenation, treatment of birthmarks and many other internal medical conditions. There is a common misconception that lasers are harmful for your skin and can cause skin cancers. This is far from the truth, since lasers are actually used to treat skin cancers and also help in keeping the skin youthful and rejuvenated. 

Lasers use non-ionising light (like red or green light) and not ionising radiation like x-rays or gamma rays. These spectrums of light do not induce cancer formation. 
Fair skinned races are at much greater risk than skin of color. Melanin in darker skin does not allow harmful UV light in sunlight to penetrate through and the risk of skin cancers in darker skin is therefore small with normal sun exposure. Also, common lasers do not use UV light. 
Laser treatments are administered not in prolonged durations but in pulses much less than a second and parameters in the range of milliseconds and microseconds are most commonly used. Prolonged sun exposure is the most common precipitating factor for skin cancers. 
Laser light does not reach any internal organ. In fact, it requires some expertise even to make laser light reach its target just 1-2 millimeters below the skin. This is because melanin pigment in skin blocks laser light from getting through. An expert dermatologist with sound knowledge of skin optics and laser physics is able to achieve this safely and effectively. 
Laser treatments work on the principle of ''selective photothermolysis'. This means that laser light very specifically destroys only the intended target. Thus, a hair removal laser will destroy only the hair roots while leaving surrounding skin structures unharmed. Similarly, blood vessels in birth marks, collagen in wrinkles or scars, abnormal growths and cancers and individual inks in tattoos can be targeted very specifically with lasers without affecting any other structure.

Lasers - Do Not Cause Cancers!

Fibroadenomas are benign non carcinogenic tumors that occur in the breasts of women. Although the condition may affect females of any age; spanning from pubescent girls to middle aged ladies, yet it is most commonly diagnosed in young women below 30 years of age. Fibroadenomas can be described as a stiff, smooth, supple marble under the skin of your breasts, which move when touched. These tumors which occur in varied sizes, may shrink or expand with time. Diagnosing through biopsies and treatment by surgeries are commonly employed for such a condition.

Types of fibroadenomas
Fibroadenomas are of two types: simple fibroadenomas and complex fibroadenomas. The simple tumors are usually harmless and almost look the same under the lens of a microscope. On the other hand, the complex tumors are comprised of macro cysts (large fluid-filled sacs) and calcifications (deposits of calcium) which can slightly increase the chance of breast cancer.

What is the primary cause of fibroadenomas?
Doctors aren't able to pinpoint the chief cause of fibroadenomas, but they have reasons to believe that the condition may pertain to the reproductive hormones. The condition may occur during pregnancy or during the use of hormone therapy, owing to which, the tumors may increase in size. The tumors are usually seen to shrink postmenopause, when the hormone levels start to dwindle.

Fibroadenomas are apparent and you may be able to detect them even without a doctor. The marble like tumor within your breasts are usually:
1) painless
2) firm
3) rubbery and elastic
4) easily movable

These tumors can range from being too small to as big as 3 inches or more in diameter. These lumps, which are usually harmless may be a cause of concern if they start to grow or change. Consulting a doctor is duly advised in such cases.

Risks
Fibroadenomas, only in the rarest cases, increase the likelihood of breast cancer. A complex fibroadenoma comprising of cysts or thick tissues called calcifications may aggravate your condition. Causes of concern could be if the tumor pains, a family history of cancer or an event of a questionable biopsy report.

Causes and Symptoms of Fibroadenomas

Photodynamic therapy or PDT is a relatively new and non-invasive treatment for non melanomaskin cancer. It is mostly used in cases where the cancer is superficial and has not spread too deep. PDT is used mostly to treat Actinic Keratoses on the face and scalp, Basal cell carcinomas, Bowen s disease, as well as other conditions such as head and neck, mouth, lung and gullet cancer.

How does it work?
This treatment involves the use of a drug known as photosensitize or a photosensitizing agent with a specific type of light. When the photosensitizing agents get exposed to a light of a specific wavelength, a form of oxygen is produced, which eliminates nearby cancer cells. Every photosensitizer gets activated by the special light. The wavelength of the light determines how much it can penetrate into the body.

Process of Photodynamic therapy
Skin cancer is cured by PDT in several steps. The first step involves the injection of a photosensitizer into the patient s bloodstream. The blood cells absorb the agent all over the body, but in the cancer cells, it stays for a longer duration. Within 72 hours after the injection is given, the skin is exposed to light. The photosensitizer agent present in the cancer affected cells absorbs the light. An active oxygen form gets produced, which kills the cancer cells.

Other than killing the cancer cells directly, PDT uses two other ways to destroy cancerous tumors. The blood vessels in the tumor are affected, which leads to its death. The immune system also gets charged up and activated for fighting the cancer cells.

The light used for PDT is usually in the form of a laser. LEDs are also used to treat tumors present on the surface of the skin. The primary photosensitizing agent used in PDT is called porfimer sodium or Photofrin.

PDT can be undertaken in the outpatient department in a hospital. After taking the treatment, you have to keep the cancer affected area of the skin dry and covered for 36 hours. The area should be treated with care while showering. In case of thick skin lesions, repeat treatments are required within 4 weeks.

When is PDT used for skin cancer
PDT can be undertaken instead of surgery for treating basal cell cancer, Bowen s disease and actinic keratosis. PDT is used in cases where surgeries are required. It is used to treat large skin cancers, which are not very deep and in the case when several cancers develop in an area. For many skin conditions, PDT is a better remedy than undergoing a surgery.

Advantages of PDT

    There are no long term side effects.
    The process is less invasive compared to surgery.
    A very short time is taken for this therapy to be undertaken.
    The process can be repeated several times in the same area.
    Very less scarring takes place in the affected area.
    The cost of this procedure is lesser than surgery.

Treating Skin Cancer with Photodynamic Therapy

Benign prostatic hyperplasia or BPH is a condition where the prostate gland gets enlarged. This is mostly common in men who are ageing. When the prostate gland gets enlarged, the flow of urine through the urethra gets blocked, and hence, several problems related to urination may occur. BPH occurs as a result of hormonal imbalance. If untreated, BPH can lead to severe bladder and urinary health conditions.
There are several symptoms and signs of benign prostatic hyperplasia. Here are 7 common symptoms:

1. A frequent need for urination: Men affected by BPH feel an increased need to urinate frequently. This gets enhanced during the night and is called nocturia. The patient may even need to urinate more than eight times a day. Due to the enlarged prostate gland, more pressure is put on the urethra, which leads to uncontrollable urination.
2. Urinating difficulties: The act of urination becomes difficult. Because of enhanced pressure on the urethra, the flow of urine to the penis from the bladder gets blocked. This makes a urine stream hard to start. The urine stream gets weak and interrupted, and more difficulty may be experienced during the end of urination.
3. Pain during urination and ejaculation: Due to pressure on the urinary tract and reproductive system, pain can accompany urination and ejaculation. Some patients tend to push urine out, which results in pain. The pain may also occur because of infection during BPH.
4. Blood in urine and an unusual color/smell: Urine may take a dark color and have an unusual smell due to urinary retention. Unpleasant urine smell signifies urinary tract infection. Blood in the urine may also result because of dilated veins present on the surface of the enlarged prostate.
5. Urinary retention: When a patient is unable to pass any urine, it is called urinary retention. Such a condition requires immediate treatment, and you need to consult a doctor immediately.
6. Urinary tract infections: Bacteria may start growing in the bladder when the bladder is not fully emptied of urine. This bacterial infection causes darkening of the urine, and emission of a foul odor.
7. Bladder stones: Bladder stones may develop because of the inability of the bladder to empty itself completely. This is a major symptom of BPH. Hard lumps of minerals or bladder stones are formed when the urine present in the bladder gets highly concentrated, which causes the crystallization of minerals. Bladder stones may cause infections, result in blood in urine, cause bladder irritation and may also block urine flow.

So you see that benign prostatic hyperplasia involves the enlargement of the prostate gland, and results in several problems related to urination and different symptoms. Hence, immediate treatment is advisable.

7 Symptoms of Benign Prostatic Hyperplasia

Cancer today is not as rare as it once was. Today, cancer affects the young and old alike. One of the reasons for this is the pollution in particular air and water pollution that we are exposed to on daily basis.
The air we breathe in today is a mixture of smoke, particulate matter and noxious gases that causes great harm to our bodies. Amongst these, particulate matter that is smaller than 2.5 millionths of a metre is the worst.

These particle matters are emitted into the air from car exhausts, industrial exhausts, coal fires, wood stoves etc. While the body s natural defences help keep larger particle matter out of the system by sneezing or coughing it out, smaller particle matter enters the body easily. These then get trapped in the lungs and enter the bloodstream. Particle matter has in particular been linked to increasing number of lung cancer cases. Apart from lung cancer, coal tar particle matter has been linked to bladder cancer, soot to oesophageal cancer and benzene and other pesticides to leukaemia.

Radon is another source of air pollution that is emitted from the ground. In some cases, radon can also be emitted through the water. As this gas decays, it releases tiny particles that when inhaled bombard the lung cells with radiation that can cause radiation. Smoking can worsen this effect and increase a person s risk of suffering from lung cancer. Both first-hand and second-hand smoking have also been linked to breast cancer. Apart from trying to reduce emissions to lower air pollution, it is also important to clean filets of air conditions, etc. regularly to lower indoor air pollution. Preventing the smoking of tobacco in public spaces can also help improve air quality.

All pollutants emitted by us eventually find their way into the water we drink. Even if you are not drinking contaminated water, merely, showering or swimming in contaminated water can make your body more vulnerable to the carcinogens in it. Common water pollutants include arsenic, hazardous waste, animal waste, radon, chemicals and asbestos. Drinking water with concentrated amounts of arsenic has been linked to cancer of the lungs, liver, kidney and bladder while the chlorine used to treat drinking water increases the risk of bladder and rectal cancer.

To reduce the risks of cancer caused by polluted water, it is essential to reduce disinfectant by products by keeping water treatment facilities updated and promote green chemistry and alternative assessments to reduce pollution as a whole.

Pollution - How It Has Increased the Risk Of Cancer?

Breast examination is a way of detecting early changes that help in detecting lumps or other growth in the breast. This is a manual form of examination that may be carried out by the doctor or even by the patient. This kind of examination helps in detecting the onset of breast cancer and helps in successful treatment of the same. It is an essential screening strategy that all women must go through. Let us cast a glance on the various details regarding this examination, and also how frequently it must be conducted.

Age: Women who have reached the age of 18 are said to have matured physically and sexually. They should perform this examination once they have reached the said age in order to detect any anomalies in the way the physical changes occur in the breast tissue.
Procedure: One should begin by looking at one's reflection in the mirror to find any rashes or dimpling in the breasts. The shape, size and colour of the breasts and nipples must also be studied so as to check for any anomalies. Inverted nipples, redness and soreness must also be reported to the doctor. Once you are done checking the visuals, you can raise your arms and look for any changes. Then, you will need to lie down and feel your breasts by using a circular motion. The finger pads must be used in order to check for any lumps. One must start from the centre and move the breasts sideways. Any wet and slippery feeling must be reported to the doctor immediately.
Pressure: During the breast examination, you must use light pressure for the skin and tissue that lie beneath the breasts, while medium to moderate pressure should be used for the middle portion of the breasts. One must use a firm hand to check the tissue that lies at the back of the breasts, near the rib cage.
Frequency: One must get into the habit of conducting a breast examination at least once a fortnight or once a month, without fail. You can also go to the gynaecologist for an examination in case you are not confident of conducting it on your own with proper movements and accuracy. You may also journalise your breast examination findings.
Menstrual Cycles: When you are going through your menstrual cycle or period, it is important to remember that your breasts can become tender just before or after the start of the cycle. So, do not panic if you think you have found a lump or any other growth at this time. It is best to check again after a week and then visit the doctor about checking the same.

How Frequently Should a Breast Examination Be Done?

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