cold-induced vasospasm

Cold-induced vasospasm is a condition where blood vessels, especially in the fingers and toes, suddenly tighten in response to cold temperatures. This narrowing reduces blood flow, causing areas to turn white, blue, or red and may feel numb, cold, or painful. It’s often seen in conditions like Raynaud’s phenomenon. The spasms are a protective response, but excessive or frequent episodes can lead to tissue damage. Keeping extremities warm and managing triggers can help reduce attacks. If symptoms persist or worsen, medical attention is recommended to prevent complications.