Skin Cancer

The skin is the outer membranes of the body. It protects us from UV rays, injury, and infection. It regulates body temperature and stores water, fat and Vitamin D. It is made up of two main layers of the outer skin layer and inner skin layer. The outer skin (epidermis) is formed of a flat scale-like cells called squamous cells. Under the squamous cells are round cells called basal cells. The deepest part of the epidermis also contains melanocytes. These cells produce melanin, which gives color to the skin. Inner layer of skin (dermis) contains blood and lymph vessels, hair follicles, and glands. These glands produce sweat, which helps regulate body temperature and sebum, an oily substance that prevents dryness. Sweat and sebum reach the skin's surface through pores.

Types of Skin Cancer

  • Two types of the most common skin cancer is basal cell carcinoma and squamous cell carcinoma. Carcinoma is cancer that begins in cells that line or shrouds basal cell carcinoma and squamous cell carcinoma which sometimes called skin cancer (non-melanoma). Another type of cancer that occurs in the skin is melanoma, which begins in the melanocytes.

  • The most common warning signs of skin cancer is the changes of the skin texture, especially a sore that does not heal. Skin cancers do not all look the same. For example, the cancer may begin a small lumps, smooth, shiny, pale or waxy. It can also appear as a firm red lump. Sometimes, the lump bleeds or develops a crust. Skin cancer can also start as a flat, red spot, rough, dry or scaly.

  • Both basal cell cancer and squamous cell occured especially if skin exposed to the sun such as the head, face, neck, hands and arms. However, skin cancer can also occur in any part of the body.