Henoch-Schonlein purpura is more commonly seen in children than adults and often occurs after an upper respiratory infection. It causes skin rashes that bleed into the skin (petechiae and purpura). Bleeding may also occur from the gastrointestinal tract and kidneys.
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.