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What is Raynaud's phenomenon?
Raynaud's (say "ray-NOHZ") phenomenon is a problem when the blood vessels in the hands and feet are extra sensitive and become more narrow than normal. The hands and feet feel very cold and numb for a short time.
You may also hear this condition called Raynaud's syndrome or Raynaud's disease.
For most people, Raynaud's is more of a nuisance than a disability.
Raynaud's phenomenon is characterized by having white fingers due to blood flow within the blood vessel is blocked due to cold temperatures or emotional stress.
Raynaud's Phenomenon white-fingers Raynaud's syndrome