Nikolsky sign is a skin finding caused by a staphylococcal infection in which the superficial layers of skin slip free from the lower layers with a slight rubbing pressure. Large areas of the skin will blister and peel away leaving wet, red and painful areas.
Review Date 2/18/2022
Updated by: Ramin Fathi, MD, FAAD, Director, Phoenix Surgical Dermatology Group, Phoenix, AZ. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.