Raynaud's phenomenon risk factors

Editors-In-Chief: Asghar Fakhri, M.D., Duane S. Pinto, M.D. and C. Michael Gibson, M.S., M.D.

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Smoking worsens frequency and intensity of attacks, and there is a hormonal component. Raynaud’s phenomenon also occurs without another disease, medication, or cause. This is called primary Raynaud’s phenomenon. It most often begins in people younger than age 30.

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