Moles are clusters of pigmented cells and are usually harmless when they remain stable, symmetrical, and unchanged.
However, any alterations in size, shape, or color—or symptoms like itching, bleeding, or crusting—could be early signs of melanoma, a dangerous form of skin cancer. Early detection is essential for effective treatment.
To identify potentially harmful moles, dermatologists use the ABCDE rule: Asymmetry (uneven halves), Border (irregular or blurred edges), Color (multiple or unusual shades), Diameter (larger than 6mm), and Evolving (any changes over time). Any mole matching one or more of these criteria should be evaluated by a doctor without delay.
