Key Symptoms
The four “classic” features of HSP include:
-
Skin Rash (Palpable Purpura): Reddish-purple spots that don’t fade when pressed, usually on the legs and buttocks.
-
Joint Pain/Swelling: Knees and ankles are most often affected.
-
Abdominal Pain: Can range from mild cramping to severe pain. Some may experience nausea, vomiting, or blood in the stool.
-
Kidney Involvement: Blood or protein in the urine, swelling in the legs, or high blood pressure may appear.
Not everyone will develop all of these symptoms, but the rash is almost always present.
