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What causes vasculitis?

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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.

Often, we don’t know what causes vasculitis. In a few cases, it may be triggered by a virus or other types of infections. Or it might follow an allergic reaction to a medication.

Vasculitis also may be related to other diseases of the immune system that the person has had for months or years. For example, it could be a complication of rheumatoid arthritis, lupus, or Sjögren's syndrome.

From: Vasculitis Pain Management WebMD Medical Reference

SOURCES:

National Heart, Lung, and Blood Institute: "What Is Vasculitis?"

American College of Rheumatology: "Vasculitis."

Reviewed by Melinda Ratini on June 13, 2017

SOURCES:

National Heart, Lung, and Blood Institute: "What Is Vasculitis?"

American College of Rheumatology: "Vasculitis."

Reviewed by Melinda Ratini on June 13, 2017

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What are symptoms of vasculitis?

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