![]() ![]() Sequence of colour changes in the skin may progress from white to blue to red.Numb, prickly feeling or stinging pain, sometimes with redness, upon warming or relief of stress.Blanching or whitening of the fingers, usually without affecting the thumb.Tingling and slight loss of feeling or numbness in the fingers, toes, nose, lips, ears.Typical attacks occur when cold or emotionally upset. Attacks of white finger can also occur when a person is outdoors watching sports, or while gardening, fishing or golfing in cold weather. Household or leisure activities resulting in cold exposure include washing a car, holding a cold steering wheel of a car, or the cold handlebars of a bicycle. These attacks occur when the hands or the whole body get cold either at work or at home or from stress. What are the signs and symptoms of Raynaud's phenomenon? Back to topĪttacks of poor blood circulation in the fingers are the most noticeable symptom of Raynaud's phenomenon. Blood flow can also be reduced by adrenaline that is released during times of high stress or anxiety. In people with Raynaud's phenomenon, this control system becomes too sensitive to cold and greatly reduces blood flow in the fingers and toes. This response uses a complex system of nerves and muscles to control blood flow through the smallest blood vessels in the skin. Usually, the body conserves heat by reducing blood circulation to the extremities, particularly the hands and feet. Why Raynaud's phenomenon occurs is not well understood. Less severely affected workers sometimes have to change their social activities and work habits to avoid attacks of white finger. Although rare, severe cases can lead to breakdown of the skin and gangrene. If not detected in the early stages, the disorder can permanently impair blood circulation in the fingers.Īlthough Raynaud's phenomenon is not life threatening, severe cases cause disability and may force workers to leave their jobs. ![]() Awareness can help prevent the disorder from occurring or progressing to a serious stage. It is important to know the signs and symptoms of Raynaud's phenomenon and the workplace hazards that cause it. Occupationally, it is most commonly associated with "hand-arm vibration syndrome" but it is also involved in other occupational diseases. Raynaud's phenomenon has many different causes including workplace exposures. The disorder is sometimes called "white finger", "wax finger" or "dead finger." When a person has Raynaud's phenomenon, exposure to cold abnormally reduces blood circulation, causing the skin to become pale, waxy-white or purple. This condition is aggravated by exposure to cold. Raynaud's phenomenon, sometimes called Raynaud's syndrome or disease, is a disorder of blood circulation in the fingers and toes (and less commonly of the ears and nose). What is Raynaud's phenomenon? Back to top ![]()
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