Skin Cancer-definitions, types ,causes and symptoms

 What Is Skin Cancer?

Skin cancer occurs when skin cells grow abnormally and multiply in an uncontrolled way in the outermost skin layer. This is caused by DNA damage that triggers mutations. Skin cancer affects people of all skin tones, including those with darker complexions.

What Causes Skin Cancer?

The skin cancer is caused by ultraviolet (UV) light, mutations in the skin cells. There are three types of UV light found in Sunlight.

Ultraviolet A (UVA): Ultraviolet A has a longer wavelength and it is associated with skin aging

Ultraviolet B (UVB): Ultraviolet B has a shorter wavelength and it is associated with skin burning

Ultraviolet C (UVC): it is most dangerous to the skin but is filtered out by the Earth's atmosphere.


Skin cancer is the most common type of cancer in the world.

Skin cancer is by far the most common type of cancer. If you have skin cancer, it is important to know which type you have because it affects your treatment options and your outlook (prognosis). If you aren’t sure which type of skin cancer you have, ask your doctor so you can get the right information.

Squamous cell carcinoma. Squamous cell carcinoma is the second most common skin cancer. More than 1 million Americans are diagnosed with this type of skin cancer each year. It develops in squamous cells, which are flat cells near the surface of your skin.

Skin cancer Symptoms?

  1. A change in your skin is the most common sign of skin cancer.
  2. A new spot on the skin.
  3. Changes in the size, shape or colour of an existing spot. A red- or skin-colour shiny bump on the top of the skin.
  4. A growth with a raised border and central crust or bleeding.
  5. A non-healing sore that bleeds or develops a crust.

early Self care to Protect face and from sun skin care:

Sunscreen is a topical formulation used to protect the human body from the harmful effects of the sun’s ultraviolet radiation. It is used daily by people to protect their skin from premature aging and in addition to that, it can be used to treat existing or new skin cancers. The use of sunscreen has become a must for people who spend time outdoors; however, it can prove to be a challenge for many as there are different types of sunscreens available in the market.


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