Henoch-Schönlein purpura

Henoch-Schönlein purpura (HSP) is a hypersensitivity vasculitis affecting small blood vessels throughout the body. It is primarily characterized by dark purple patches on the skin and mucous membranes, which may be accompanied by rash, joint pain, abdominal pain, and kidney damage. It is more common in children and adolescents, with a higher incidence in males than females. Common Questions Q: Is Henoch-Schönlein purpura an allergy? A: Henoch-Schönlein purpura is not an allergy. Henoch-Schönlein purpura is an older term that is still widely used, but IgA vasculitis is a more appropriate name. There is no involvement of "allergy." Therefore, using anti-allergy medications to treat "Henoch-Schönlein purpura" is also incorrect.