Sunburn and Sunlight

Most people receive 80% of their lifetime exposure to the sun by 18 years of age.   Very simply, sunburn and UV light can damage your skin, and this damage can lead to skin cancer. There are, of course, other determining factors, including your heredity and the environment you live in. However, both the total amount of sun received over the years, and overexposure resulting in sunburn can cause skin cancer.

Tanning is your skin's response to UV light. It is a protective reaction to prevent further injury to your skin from the sun. However, it does not prevent skin cancer.

Heredity

If there is a history of skin cancer in your family, you are probably at a higher risk. People with fair skin, with a northern European heritage appear to be most susceptible. 

Environment

The level of UV light today is higher than it was 50 or 100 years ago. This is due to a reduction of ozone in the earth's atmosphere (the Ozone Hole). Ozone serves as a filter to screen out and reduce the amount of UV light that we are exposed to. With less atmospheric ozone, a higher level of UV light reaches the earth's surface.

One factor that actually reduces UV is cloud cover. Climates and micro-climates with regular cloud cover may have a 50% lower level of UV light. The actual amount is affected by the density of the clouds.

BASAL CELL & SQUAMOUS CELL

There are several types of cancer that start in the skin. The most common are basal cell cancer and squamous cell cancer.

Skin cancer is more common in people with light colored skin who have spent a lot of time in the sunlight. Skin cancer can occur anywhere on your body, but it is most common in places that have been exposed to more sunlight, such as your face, neck, hands, and arms.

Skin cancer can look many different ways. The most common sign of skin cancer is a change on the skin, such as a growth or a sore that won't heal. Sometime there may be a small lump. This lump can be smooth, shiny and waxy looking, or it can be red or reddish brown. Skin cancer may also appear as a flat red spot that is rough or scaly. Not all changes in your skin are cancer, but you should see your doctor if you notice changes in your skin.

MELANOMA

Melanoma is a disease of the skin in which cancer (malignant) cells are found in the cells that color the skin (melanocytes). Melanoma usually occurs in adults, but it may occasionally be found in children and adolescents. Your skin protects your body against heat, light, infection, and injury. It is made up of two main layers: the epidermis (the top layer) and dermis (the inner layer). Melanocytes are found in the epidermis and they contain melanin, which gives the skin its color. Melanoma is sometimes called cutaneous melanoma or malignant melanoma.

Melanoma is a more serious type of cancer than the more common skin cancers, basal cell cancer or squamous cell cancer, which begin in the basal or squamous cells of the epidermis.

Like most cancers, melanoma is best treated when it is found (diagnosed) early. Melanoma can spread (metastasize) quickly to other parts of the body through the lymph system or through the blood. (Lymph nodes are small, bean-shaped structures that are found throughout the body; they produce and store infection-fighting cells.) You should see your doctor if you have any of the following warning signs of melanoma: change in the size, shape, or color of a mole; oozing or bleeding from a mole; or a mole that feels itchy, hard, lumpy, swollen, or tender to the touch. Melanoma can also appear on the body as a new mole. Men most often get melanoma on the trunk (the area of the body between the shoulders and hips) or on the head or neck; women most often get melanoma on the arms and legs.