Henoch-Schönlein purpura (HSP) is a form of vasculitis, a condition that involves inflammation of the blood vessels. It can affect any organ of the body and is the most common form of vasculitis in childhood. The condition is characterized by bruise-like rash on the arms or legs.

Purpura not due to a low platelet count, caused by inflammation in blood vessels of the skin, is the hallmark of HSP. The tetrad of purpura, arthritis, kidney inflammation, and abdominal pain is often observed. However, all four elements of this tetrad are not required for diagnosis.

Sep 21, 2021 · Reddish-purple spots that look like bruises develop on the buttocks, legs and feet. The rash can also appear on the arms, face and trunk and may be worse in areas of pressure, such as the sock line and waistline. Swollen, sore joints (arthritis).

Henoch-Schonlein purpura (HSP) is disease that causes small blood vessels to become swollen and irritated—a condition called vasculitis. It is most common in children between the ages of 3 and 15 years old and is rarely seen in adults. HSP is not contagious and tends to affect boys more than girls. Cause

Jul 15, 2024 · Henoch-Schönlein purpura (HSP) is a disease that inflames small blood vessels. The inflammation causes blood vessels in the skin, intestines, kidneys, and joints to start leaking. The main...

The most common sign of Henoch-Schönlein purpura is a purplish rash, which looks like bruising. It happens in all cases of HSP, usually on the lower legs and buttocks. It also can appear on the arms, face, and trunk. Kids also might have: pain and swelling in the joints, usually about 1–2 weeks before the rash starts.

IgA vasculitis (HSP), previously known as Henoch–Schönlein purpura, is an autoimmune disease that most commonly affects children. In the skin, the disease causes palpable purpura (small, raised areas of bleeding underneath the skin), often with joint pain and abdominal pain.

Aug 15, 2020 · Henoch-Schönlein purpura, now called immunoglobulin A (IgA) vasculitis, is a systemic, immune complex–mediated, small-vessel leukocytoclastic vasculitis characterized by nonthrombocytopenic...

Mar 10, 2025 · What are the signs and symptoms of HSP? A purple rash (purpura) is the most common sign of HSP. The rash may feel bumpy. The rash may first appear on your legs, arms, or buttocks. It may spread to your chest, back, or face. You may also have any of the following: How is HSP diagnosed?

Nov 13, 2018 · The rash can also show up on the face, arms, chest, and trunk. The spots in the rash look like bruises. If you press on the rash, it will stay purple rather than turning white. HSP also affects...