Raynaud's phenomenon, also known as Raynaud's syndrome or Raynaud's disease, is a medical condition in which the blood vessels in the fingers and toes narrow in response to cold temperatures or stress. This narrowing of the blood vessels causes a decrease in blood flow, resulting in the affected areas becoming cold and numb. People who suffer from Raynaud's phenomenon may also experience tingling, burning, and pain in their fingers and toes.
What Is Raynaud's Phenomenon?
Raynaud's phenomenon is a disorder of the blood vessels that can cause numbness and pain in the fingers and toes. It is often triggered by cold temperatures or emotional stress, and can be accompanied by white or blue discoloration of the affected areas. It is believed to be caused by the body's abnormal reaction to cold temperatures, in which the blood vessels go into spasm and constrict the blood supply to the affected areas.
What Diseases Are Associated with Raynaud's Phenomenon?
Raynaud's phenomenon can be a symptom of several different underlying medical conditions, including scleroderma, lupus, rheumatoid arthritis, and Sjogren's syndrome. It can also occur in people who have no other underlying medical conditions. In these cases, the disorder is referred to as primary Raynaud's phenomenon.
How Is Raynaud's Phenomenon Diagnosed?
Raynaud's phenomenon is usually diagnosed based on a person's description of their symptoms and a physical examination. Blood tests and other tests may be used to rule out other medical conditions that can cause similar symptoms.
How Is Raynaud's Phenomenon Treated?
Treatment for Raynaud's phenomenon typically involves lifestyle changes, such as avoiding exposure to cold temperatures, wearing warm clothing, and avoiding stress. Medications such as vasodilators and calcium channel blockers may also be used to improve blood flow to the affected areas. In severe cases, surgery may be necessary to improve blood flow.