IgA Vasculitis, also known as Henoch-Schönlein purpura, is a type of small-vessel vasculitis that primarily affects children but can occur in adults. It is characterized by inflammation of blood vessels, leading to symptoms such as a purplish rash, joint pain, abdominal pain, and kidney involvement. The condition is associated with elevated levels of Immunoglobulin A (IgA) in the blood. The exact cause of IgA Vasculitis is not fully understood, but it often follows a respiratory infection. Diagnosis typically involves clinical evaluation and may include blood tests and urine analysis. Most cases resolve on their own, but treatment may be necessary for severe symptoms or complications.