Mole
A change in a mole can indicate a serious problem. A dermatologist should be seen if a mole or skin lesion becomes larger, changes color, or develops an irregular border. Other warning signs include itching, crusting, pain, and bleeding. Extensive and potentially disfiguring surgery can often be prevented by prompt surgical removal, by specialized freezing, by treatment with chemicals applied to the diseased tissue, or with the aid of a laser.