Raynaud's phenomenon
Meaning
Raynaud's phenomenon is when small blood vessels spasm in cold or stress. Fingers or toes turn white or blue, go numb or painful, then redden as flow returns.
Synonyms
Examples
Most patients (over 80%) have vascular symptoms and Raynaud's phenomenon, which leads to attacks of discoloration of the hands and feet in response to cold.
Raynaud's phenomenon is a neurovascular disorder that affects the fingers.