ABCD skin refers to a set of characteristics used to identify potentially cancerous moles or skin lesions. The acronym stands for Asymmetry, Border, Color, and Diameter. Doctors use this rule to diagnose and classify melanomas, a type of skin cancer.
- Asymmetry: One half of the mole does not match the other half.
- Border: The edges are irregular, notched, or blurred.
- Color: The mole has varying colors from one area to the next, such as shades of tan, brown, or black.
- Diameter: The mole is larger than 6 millimeters (about the size of a pencil eraser).
The ABCD rule is a helpful tool for early melanoma detection. If you notice any of these characteristics in a mole or skin lesion, it's important to see a dermatologist for a professional evaluation.
