Why is skin cancer common among people? And how many types of cancer?
The skin is made up of two main layers and various kinds of cells. The outer layer of the skin is called the epidermis.
The inner layer of the skin is called the dermis. This layer is thicker and contains blood vessels, nerves, and sweat glands. Hair (value) on the skin also grows in tiny pockets in the dermis called follicles. The dermis produces sweat, which helps cool the body, and oils that keep the skin from drying out.
Skin cancer is more common among people whose skin is fairer and who have spent much time in the sun. Skin cancer can occur anywhere on the body, but it is most common in areas with the most exposure to sunlight, such as the face, neck, hands, and arms.
If the person has a spot or bumps on the skin, the doctor may remove it to look at the tissue under a...