Henoch Schnolein Purpura (HSP) – Diagnostic criteria is a rheumatology tool commonly applied in Pediatrics. Checklist-based educational evaluation: at least 2 of 4 criteria (palpable purpura, age ≤20 at onset, bowel angina, biopsy granulocytes). Use the interactive calculator for inputs, limitations, and primary references.

Not a substitute for clinical judgment. Verify critical values with primary literature, local protocols, and specialist input when appropriate.