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Raynaud's phenomenon support groups
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Raynaud's phenomenon
Raynaud's is a rare disorder that affects the arteries. Arteries are blood vessels that carry blood from your heart to different parts of your body.
Raynaud's is sometimes called a disease, syndrome, or phenomenon. The disorder is marked by brief episodes of vasospasm (narrowing of the blood vessels).
Vasospasm of the arteries reduces blood flow to the fingers and toes. In people who have Raynaud's, the disorder usually affects the fingers. In about 40 percent of people who have Raynaud's, it affects the toes. Rarely, the disorder affects the nose, ears, nipples, and lips.
Sometimes, a disease, condition, or other factor causes Raynaud's. This type of Raynaud's is known as Raynaud's phenomenon or secondary Raynaud's. Primary Raynaud's is more common and tends to be less severe than secondary Raynaud's.