Raynaudn
Raynaudn is not a widely used or recognized medical term. It is most likely a misspelling or shorthand for Raynaud phenomenon, a condition that affects blood flow to the extremities in response to cold or stress. Raynaud phenomenon involves episodic vasospasm of small arteries and arterioles, typically in the fingers and toes, and less commonly in the ears, nose, or lips.
The condition is commonly classified as primary (idiopathic) or secondary to another disease. Primary Raynaud's is
Symptoms usually begin with a transient color change in affected areas: white or pallor due to reduced
Diagnosis is clinical, based on history and physical examination, with additional tests to identify secondary causes