What Is CREST Syndrome?
5. Raynaud’s Phenomenon
Our blood circulates throughout our whole body, including our fingertips, and this is evident in the color of our fingers. If, for whichever reason, the flow of blood was stopped, then our fingers would become a lot paler than they usually would be. This phenomenon occurs in people that have Raynaud’s phenomenon.
In Raynaud’s phenomenon, the blood vessels in the toes and fingers can spasm. This tends to be triggered by emotional stress and/or cold. This causes the flow of blood to be blocked, and this can turn fingers white and cold, while they can also turn blue in some instances. When the circulation returns, fingers will turn red and begin to throb.
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