Signs of Melanoma

Melanoma can appear suddenly—as a new mole—or it can grow slowly, in or near an existing mole.

In men, melanomas are often found between the shoulders and hips, or the head and neck area.

In women, melanoma often develops on the lower legs as well as between the shoulders and hips.

However, melanoma can appear anywhere on the skin.

Get to know the pattern of moles, spots, freckles, and other marks on your skin so you can notice any changes. The best way to find changes in these moles and markings is by doing regular skin self-examinations.

  • If you notice any of the following on your skin, see your doctor as soon as possible:
  • A growth that increases in size and looks pearly, translucent, tan, brown, black, red, pink, or multicolored
  • A mole that changes in color or in texture, takes on an uneven shape, gets larger, or is bigger than a pencil eraser
  • A spot or growth that continues to itch, hurt, crust, scab, fade, or bleed
  • An open sore that lasts for more than 4 weeks, or heals and then reopens
  • A scaly or crusty bump that is dry, rough, and pointed (sticks out like a horn) and may sometimes cause a pricking or tender feeling in the skin

It is important to find melanoma as early as possible. The American Cancer Society recommends a skin examination during a routine cancer-related check-up in all adults age 20 years and older.

During this skin cancer check-up or "screening," your doctor will probably discuss your medical history and inspect your skin from head to toe—even areas that don't get any sun. Your doctor will record the location, size, and color of any moles. If a mole looks unusual, he or she may arrange for a biopsy.

Glossary
Biopsy
Removal of a small piece of tumor tissue for diagnosis by microscopic examination.
Melanoma
A highly malignant type of skin cancer that arises in melanocytes, the cells that produce pigment. Melanoma usually begins in a mole.
Mole
A cluster of melanocytes and surrounding supportive tissue that usually appears as a tan, brown, or flesh-colored spot on the skin. Also called a nevus.