Vasculitis is when your blood vessels get inflamed. That may weakened or stretch your blood vessels, or case them to leak, swell, get narrower, or even close off entirely.
Your doctor may diagnose it based on your symptoms, medical history, exam, and lab tests. They can test your blood for signs that you may have vasculitis, including:
- Anemia
- A high white blood cell count
- A high platelet count
- Signs of kidney or liver problems
- Signs of an allergic reaction
- Inflammation