Which symptom in Henoch-Schönlein purpura warrants urgent evaluation?

• A. Stomach pain that is sudden or severe
• B. Mild abdominal discomfort
• C. Isolated knee pain
• D. Headache

Answer: (A)

In Henoch-Schönlein purpura, the abdominal pain can reflect inflammation of small vessels in the gut, but a sudden, severe stomach pain is a red flag because it can indicate a serious complication such as intussusception, where part of the bowel telescopes into another segment. This can lead to bowel obstruction, ischemia, or perforation if not treated promptly, so it requires urgent evaluation in an emergency setting.

What this evaluation involves is rapid assessment for signs of an obstructive or ischemic process—often with abdominal ultrasound to look for intussusception, plus clinical monitoring for peritonitis, dehydration, and ongoing bleeding. Depending on findings, management may include urgent surgical or radiologic intervention, intravenous fluids, and pain control while the team arranges appropriate care.

Milder abdominal discomfort without warning features is typically managed conservatively and does not carry the same urgency. Isolated knee pain is a joint manifestation and headache is not a GI emergency in this context.