What is Raynaud Phenomenon?

Also known as: Raynaud’s phenomenon, Raynaud’s disease, RP

Raynaud phenomenon refers to the short-lived exaggerated normal response (spasm) to cold exposure or emotional stress. The spasm affects the arteries/small arterioles mainly in the hands and feet, it can also affect the nose, ears and lips.

This overreaction to a cold environment results in decreased blood flow to the affected area.

RP occurs more frequently in girls and tends to start in early adolescence, around 11-12 years of age.

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Reviewed by: Jack Wolfsdorf, MD, FAAP

This page was last updated on: 1/29/2019 3:21:13 PM