Raynaud's phenomenon

Raynaud's phenomenon is caused by vasospasms in the arterioles and arteries. Upon exposure to cold/stress, fingers become cyanotic, cold, numb, and painful. After spasm the tissue will become reddened as blood returns.

Raynaud's phenomenon is caused by vasospasms in the arterioles and arteries. Upon exposure to cold/stress, fingers become cyanotic, cold, numb, and painful. After spasm the tissue will become reddened as blood returns.

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