Raynaud's phenomenon

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Raynaud's Phenomenon

Raynaud's Phenomenon (pronounced ray-NOHZ fen-uh-muh-non) is a medical condition that affects the blood vessels in the fingers and toes. It is named after the French physician Auguste Gabriel Maurice Raynaud, who first described the condition in 1862.

Etymology

The term "Raynaud's Phenomenon" is derived from the name of the French doctor who first identified the condition. The word "phenomenon" comes from the Greek word "phainomenon," which means "thing appearing to view."

Definition

Raynaud's Phenomenon is a disorder that causes the blood vessels in the fingers and toes to narrow when a person is cold or stressed. This narrowing of the vessels, known as vasoconstriction, can cause the affected areas to change color, usually to white, then blue, and finally red as they warm up.

Symptoms

The primary symptoms of Raynaud's Phenomenon are cold fingers and toes, color changes in the skin in response to cold or stress, and a tingling or stinging sensation upon warming or relief of stress.

Causes

The exact cause of Raynaud's Phenomenon is unknown. However, it is believed to be a result of hyperactivation of the sympathetic nervous system, which controls the body's response to cold and stress.

Treatment

Treatment for Raynaud's Phenomenon primarily involves lifestyle changes such as avoiding cold temperatures, reducing stress, and quitting smoking. In severe cases, medication may be prescribed to help relax and widen the blood vessels.

Related Terms

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