• a family history of melanoma, or who have had a melanoma in the past.
• unusual moles on the skin, or changing moles.
• fair skin, light hair and eye color, and who sunburn easily or tan with difficulty.
• a record of painful or blistering sunburns as children or teenagers.
• indoor occupations and outdoor recreational habits.

Regular self-examination is the best way to become familiar with the many moles and spots on the skin. With the help of a family member or friend, you should examine your skin, including hard-to-see areas (mouth, back, scalp, buttocks, etc.). Common moles and malignant melanomas do not look alike. You should inspect your moles and pay special attention to their sizes, shapes, edges and color. A handy way to remember these features is to think of A-B-C and D-for Asymmetry, Border, Color and Diameter:

The pictures above illustrate the earliest warning signs of malignant melanoma. Any one of them or other changes in the skin-itchiness, tenderness, redness, swelling, softening or hardening-should prompt a visit to your physician.

Remember the ABCD's of self-examination. With malignant melanoma, early detection and treatment make the difference.