Evaluation of moles to check for melanoma is an essential part of dermatology today. Melanoma usually develops on previously normal skin, but on occasion may develop in a pre-existing mole. People with many moles are at slightly greater risk of melanoma, especially if the moles are large and irregular. Checking for melanoma is trickier when patients have many moles, the difference between normal moles and melanoma are often subtle and require an expert trained eye. The removal of normal moles does not decrease the risk of developing melanoma.
Dermatologists are best qualified to determine which moles are suspicious enough for biopsy.
Ideal biopsy technique allows for complete information about the growth with minimized scarring. Moles that are irritated by activities of daily living are best removed. These moles may interfere with shaving or may rub against clothing. The techniques used to remove these moles are the same as those used to remove moles that are cosmetically undesirable. There are many people who have one or more moles that they see as detracting from their overall appearance.