Henoch-Schonlein Purpura (HSP) What Is It? Henoch-Schonlein purpura (HSP) factsWhat is Henoch-Schonlein purpura (HSP)? Causes What causes HSP? Risks and Complications What are risk factors for HSP?What are complications of HSP? Symptoms What are HSP symptoms and signs? Diagnosis How do health care professionals diagnose Henoch-Schonlein purpura? Treatment What is the treatment for HSP? Prognosis What is the prognosis for patients with HSP? How to Prevent Is it possible to prevent Henoch-Schonlein purpura? Henoch-Schonlein purpura (HSP) facts HSP causes skin rash, pain in the abdomen, and joint inflammation (arthritis). Henoch-Schonlein purpura is a particular form of blood vessel inflammation called vasculitis.Site searchContactLocation mapFor professionals