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Vascular spasm

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Explore overview, symptoms, causes, treatment, diagnosis, prevention, and FAQ articles for this condition.

  • What is Raynaud phenomenon

    Raynaud phenomenon is a disorder of blood vessel regulation in which the small arteries of the fingers, and sometimes the toes, temporarily narrow too much in response to cold or emotional stress. This causes a brief but marked reduction in blood…

  • FAQ about Raynaud phenomenon

    Raynaud phenomenon is a common circulation disorder in which the small blood vessels in the fingers, and sometimes the toes, temporarily narrow too much in response to cold or stress. This FAQ explains what Raynaud phenomenon is, why it happens, how…

  • Symptoms of Raynaud phenomenon

    Raynaud phenomenon produces episodic color change, coldness, numbness, and tingling in the fingers or toes , usually in response to cold exposure or emotional stress. These symptoms arise because small arteries and arterioles in the extremities undergo an exaggerated, temporary narrowing,…

  • Causes of Raynaud phenomenon

    Raynaud phenomenon develops because the small arteries supplying the fingers and toes overreact to certain triggers, especially cold exposure and emotional stress, causing a temporary but marked reduction in blood flow. The immediate cause is an abnormal vasospasm, or tightening of…

  • Diagnosis of Raynaud phenomenon

    Raynaud phenomenon is usually identified through a combination of symptom pattern recognition, clinical examination, and selective testing. The condition is caused by exaggerated vasospasm in the small arteries of the fingers or toes, sometimes also affecting the ears, nose, or nipples.…

  • Treatment for Raynaud phenomenon

    What treatments are used for Raynaud phenomenon? The condition is managed with a combination of non-drug measures, medications that reduce blood-vessel constriction, and, in severe cases, procedures that interrupt abnormal nerve signaling or restore blood flow. These treatments are aimed at…

  • Prevention of Raynaud phenomenon

    Raynaud phenomenon cannot usually be prevented with certainty, because it arises from an exaggerated vascular response rather than from a single controllable cause. In many people, especially those with primary Raynaud phenomenon , the condition develops without an identifiable underlying disease…