Moles are unusual growths on the skin. They occur when melanocytes, which are cells within the skin, grow in a cluster with surrounding skin tissue. Moles are common. According to the National Library of Medicine, most people have between 10 and 40 moles. The medical term for a single mole is a "nevus." The plural term for nevus is "nevi." About one out of every 10 people has a mole that has an unusual appearance. The medical term for moles that have an unusual appearance is "dysplastic nevi." Dysplastic nevi may have a greater chance of developing into melanoma, which is a type of skin cancer, than normal moles.
Step 1
Make a schedule to check your skin once a month, especially if you have increased risk factors for melanoma, including the presence of dysplastic nevi, a family history of melanoma, a personal history of melanoma and a weakened immune system.
Step 2
Stand in front of a full-length mirror when checking your skin for moles and dysplastic nevi during your monthly self-examination. Conduct your examination in a well-lighted room so you can more easily see your moles, and use a handheld mirror to check for hard-to-see locations on your body.
Step 3
Examine your skin, starting with your face and scalp. Continue to examine your skin, working your way downward, checking your head, neck, shoulders, chest, back and the rest of your body.
Step 4
Make note of the moles on your skin, including color, size and shape. Moles are usually tan, pink or brown. They can be raised or flat. They are typically oval or round and not bigger than the eraser on the end of a pencil.
Step 5
Compare the features of your moles from month to month, and contact a dermatologist if any mole itches, bleeds or exhibits changes. Other signs that a mole may be developing into melanoma include asymmetry, which means one-half of the mole does not match the other half. Irregular or poorly defined borders are other signs of melanoma. If there are variations in color from one area of the mole to another, it should be checked by a dermatologist. Also, any mole that is larger than the size of a pencil eraser should be checked by a dermatologist.
Step 6
Continue to check your moles monthly, and see a dermatologist as needed.
Tips and Warnings
- Using a blow dryer or brush can help you inspect areas such as the back of your neck, which may be covered with hair.
- Although most melanomas are larger than a pencil eraser, there are instances when they are smaller.
Things You'll Need
- Full-length mirror
- Handheld mirror
