What is Raynauds-Disease

Raynaud's disease (RAY-noz) is a condition that affects blood flow to the extremities which include the fingers, toes, nose and ears when exposed to temperature changes or stress. ...

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Raynaud's Disease Information

Raynaud's disease (RAY-noz) is a condition that affects blood flow to the extremities which include the fingers, toes, nose and ears when exposed to temperature changes or stress. It was named after Maurice Raynaud (1834 - 1881), a French physician who first described it in 1862. The symptoms include several cyclic color changes:
  1. When exposed to cold temperatures, the oxygen supply to the fingertips, toes, and earlobes of Raynaud's disease patients are reduced and the skin color turn pale or white (called pallor) and become cold and numb.
  2. When the oxygen supply is depleted, the skin colour turns blue (called cyanosis).
  3. These events are episodic and when the episode subsides, or the area is warmed, blood returns to the area and the skin colour turns red (rubor) and then back to normal, often accompanied by swelling and tingling. These symptoms are thought to be due to reactive hyperemias of the areas deprived of blood flow.

All three colour changes are present in classic Raynaud's disease. However, some patients do not see all of the colour changes in all outbreaks of this condition.

Flat nails are also associated with Raynaud's disease.

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