Raynaud Phenomenon (cont.)
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Raynaud's Phenomenon Symptoms and Signs
When someone has an attack of Raynaud's phenomenon, the small arteries of the arms and legs shut down, which limits blood flow to the distal organs. The tissues become deprived of the blood's oxygen, which causes color changes in the skin. However, it should be understood that Raynaud's phenomenon is not the same as frostbite.
The Raynaud's phenomenon attack usually lasts minutes, although sometimes it may last several hours.
Shabir Bhimji, MD
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