Raynaud’s phenomenon

Raynaud’s phenomenon is a vascular disorder characterised by episodic vasospasm of the small arteries, primarily in the fingers and toes, leading to colour changes, numbness, and pain in response to cold or stress. It is clinically significant as it can indicate underlying autoimmune diseases, such as systemic sclerosis or lupus, and may lead to complications like digital ulcers or gangrene in severe cases. Understanding its triggers and associations is crucial for effective management and patient education.