Raynaud's Phenomenon.
Last updated Monday, December 27, 2004
AboutWhat is raynaud's phenomenon? Raynaud's (pronounced "ray-NODES") phenomenon refers to episodic
color changes in the skin of the fingers and toes during exposure to
cold or in response to emotional stress. In some people, the ears,
lips, and nose may also be affected.
Although it is normal for blood flow to the fingers to be reduced in
extreme cold, people with Raynaud's phenomenon have difficulty on mild
days, in air-conditioned rooms, or when holding a cold drink. Episodes
may last for several minutes after the body becomes warm again.
When this condition occurs in the absence of disease, it is known as
"primary Raynaud's phenomenon." Approximately 10 percent of healthy
women have this form. Raynaud's may also occur with diseases in which
the blood vessels have been injured or when elements of the blood are
sluggish. This form is called "secondary Raynaud's phenomenon" and is a
feature of arthritis and related diseases such as scleroderma, lupus, rheumatoid arthritis, and others.
What symptoms indicate that raynaud's phenomenon needs immediate medical attention? In secondary Raynaud's phenomenon, sores called ulcers may develop
when blood does not flow adequately to the tissues. Examine feet and
hands daily to check for ulcers. If an ulcer develops, keep it clean
and covered and see a doctor right away.
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