What are the characteristics of acne vulgaris?

Updated: Mar 26, 2019
  • Author: Jaggi Rao, MD, FRCPC; Chief Editor: William D James, MD  more...
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Answer

Acne vulgaris is characterized by comedones, papules, pustules, and nodules in a sebaceous distribution (eg, face, upper chest, back). A comedone is a whitehead (closed comedone) or a blackhead (open comedone) without any clinical signs of inflammation. Papules and pustules are raised bumps with inflammation. The face may be the only involved skin surface, but the chest, back, and upper arms are often involved.


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