Raynaud's phenomenon has many different causes. The signs and symptoms of Raynaud's phenomenon and the workplace hazards that cause it are important to know. This awareness can help prevent Raynaud's from occurring or getting worse. If it is not detected early, the disorder can permanently affect blood circulation in the fingers. Raynaud's phenomenon is not life threatening, but severe cases can cause disability and may force workers to quit their jobs.
Severe cases can lead to breakdown of the skin and gangrene.
Many affected workers have to change their activities and work habits to avoid attacks of Raynaud's. The reasons why Raynaud's phenomenon occurs are not completely understood. A healthy body saves heat by reducing blood circulation to the extremities, like the hands and feet. This conservation response involves an extensive system of nerves and muscles to control blood flow through the smaller blood vessels in the skin. With Raynaud's phenomenon, this control system becomes hyper sensitive to cold and overcompensates in reducing the blood flow to the fingers.