A macule is a flat, distinct, discolored area of skin that is usually less than 1 centimeter wide. It usually does not include a change in skin texture or thickness.
Habif TP, ed. Principles of diagnosis and anatomy. Clinical Dermatology. 5th ed. St. Louis, MO: Elsevier Mosby; 2009:chap 1.
Reviewed By: Laura J. Martin, MD, MPH, ABIM Board Certified in Internal Medicine and Hospice and Palliative Medicine, Atlanta, GA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.