Definition of Macule

A small skin lesion that is flat, smooth, and discolored. Macules are common and may appear as the presenting symptom for numerous dermatologic and other health conditions. Often the only symptom they present themselves is discoloration, though some macules itch or hurt.

The discoloration may be hyperpigmentation (darker than the surrounding skin) or hypopigmentation (lighter than the surrounding skin).

A macule is the same texture and thickness as the adjacent skin and generally no larger than two inches in length, width, or diameter. The most common macule is a lentigo, or freckle.

See also BIRTHMARKLENTIGINESNODULEPAPULEPUSTULEVITILIGO.

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