Harvard Heart Letter

What is vasculitis?

Ask the doctor Q. My doctor suspects I may have vasculitis. What can you tell me about this condition? A. Vasculitis refers to a group of uncommon disorders marked by inflammation of the blood vessels. This inflammation can affect arteries, veins, or capillaries, the tiny vessels that connect the smallest arteries to the smallest veins. It can damage vessels that supply only one part of the body (such as the…

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