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!

Prostate cancer is a cancerous tumor in a man s prostate gland, a small gland that is responsible for producing the seminal fluid which transports and nourishes the sperm. It is a very common type of cancer among men. A few cases of prostate cancer tend to develop slowly while others may progress very fast.
Symptoms-
In the initial stages, prostate cancer may not show any symptom. However, in the latter stages, there may be symptoms such as:
Pain in the bones.
Erectile dysfunction.
Urination can get troublesome.
Presence of blood in the semen.
Pain and discomfort in the pelvic region.
Causes-
The exact causes of prostate cancer are not known. It starts to develop when certain cells in the prostate gland start to mutate. These mutations cause these cells to multiply at a very fast rate and thus, soon form tumors. Although the causes are not known, certain factors tend to aggravate this condition; them being:
Color: According to certain medical reports, a darker skin may mean increased chances of suffering from prostate cancer.
Age: The risk of developing prostate cancer tends to increase with age.
Genetics and Family History: Faulty genes could be another cause of this condition. Also, having some member in the family who is diagnosed with this type of cancer only increases the risks of you suffering from them.
Obesity: If you are obese, then you are more likely to develop prostate cancer.
Treatments-
The treatments for prostate cancer include:
Radiation Therapy: In this procedure, high energy rays are used to target and destroy cancer cells. Usually X-rays or protons are used to treat the cancer cells.
Hormone Therapy: Hormone therapy is a type of treatment wherein certain medications are administered to prevent your body from producing testosterone.
Surgery: If the other treatment methods do not produce desired results, then a surgery is carried out for the removal of the prostate gland. In addition to the prostate gland, some adjoining lymph nodes and tissues are also removed.
Chemotherapy: Chemotherapy is method of destroying cancer cells by injecting chemicals into the body. The medicines are injected into the veins in the arms. 

All About Prostate Cancer

A breast lump is a restricted swelling, projection, lump or knot in the breast that doesn't feel like a breast tissue. There are diverse reasons why breast lumps occur.

Not all lumps are cancer. These can also be breast conditions that are not harmful and which can be easily curable.Knots that feel harder or are not the same as the rest of the breast need to be checked. This kind of irregularity might be an indication of breast cancer.

A self-examination should be your starting point. This is how you can detect a lump on your own:

Step 1: Begin by taking a look at your breast in the mirror. Keep your shoulders straight and your arms on your hips.

This is what you need to search for:

    Breasts that are their typical size, shape, and shading
    Breasts that are uniformly formed without distortion or swelling

In the event that you see any of the changes mentioned below, convey them to your doctor:

    Dimpling, puckering, or protruding of the skin
    A nipple that is not in its initial position
    Redness, rash or swelling

Step 2: Now, raise your arms and look for the changes mentioned above.

Step 3: While you're in front of the mirror, search for any indications of liquid or blood discharge from the nipples.

Step 4: Next, examine your breasts while resting.Use Your right hand to feel your left breast and use your left hand to feel your right breast. Cover the whole breast from your collarbone to the highest point of your mid-region, and from your armpit to your cleavage to search for any lumps.

Step 5:Examine your breasts while either standing or sitting. Many women find that the easiest approach to examine their breasts is when their skin is wet, so this step could be done while taking a bath as well.

Diagnosis:

    Mammogram: Mammography is a technique using X-rays to diagnose and locate tumours of the breasts.
    Breast ultrasound: Breast ultrasound utilises sound waves to create pictures of the breasts from the inside.
    Breast MRI:This involves using an effective and attractive field, and radio frequency pulses to create photos of the insides of the breasts.
    Ultrasound-guided biopsy: During this sort of biopsy, utilising ultrasound imaging to discover the bump, a radiologist will give you anesthesia and afterward insert a needle into the lump to evacuate some tissue for assessment under a magnifying lens. Stereotactic biopsy and an X-ray-guided biopsy may also be used.

Possible treatments:

    In case the knot turns out to be cancerous, surgery is typically performed.
    You may have a few discussions with different doctors for additional treatment, including radiation treatment and chemotherapy or hormone treatment.

What You Should Know About Breast Lump Detection

Science has advanced a lot through the ages. Doctors have also succeeded in curing many diseases in this time. But even with one of the most advanced technologies, they still haven t found a fool proof way to cure cancer. Even out of the many types of cancer, blood cancer is the worst among them. You surely wouldn t want to get into such a situation. Would you? The best way out of blood cancer is never to get one. To prevent it you can take care of a few things:

Maintaining proper body weight: Although you can t do much to prevent cancer, you must ensure that you maintain a healthy body weight. This implied that your BMI should be normal (healthy weight) so that you have a good chance of fighting it. It has been said by many leading institutions worldwide as the best way to prevent cancer. One can maintain proper body weight by making sure they exercise every day for at least 30 minutes and also maintain a well-balanced diet. This would help you maintain a healthy body weight.
Reduction in the consumption of calorie dense food: Not only because calorie dense foods like cold drinks increase your weight, the sugar mixes with your blood and thus is difficult to transport through the body. Thus they add a lot of impurities to the body and must be avoided for the best interests in your effort to fight cancer. The worst fact about calorie dense foods is that you can easily consume 1000   2000 calories long before you can satisfy your hunger. Thus, it also defeats your first preventive measure to avoid cancer.
Staying away from harmful chemicals like pesticides: You might not know it and be happily spraying pest control sprays everywhere without a proper mask thinking you will make the pests go away. What you don t know is that those pesticides are harmful for your blood and one should avoid them. To increase the probability of winning against blood cancer, it s vital to keep this in mind.
Consulting a doctor from time to time: One should always go and visit a medical practitioner from time to time so that they can maintain proper health. Furthermore, if you see symptoms like fever, frequent infections, night sweating, swollen liver with abdomen pain, enlarged lymph nodes (they are usually painless), then be sure to go to a medical practitioner. Always remember that prevention is better than cure. Thus one should try to prevent blood cancer not cure it.

Blood Cancer - How To Prevent It? 

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?

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

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