Raynaud's syndrome

Raynaud's Syndrome "is a rare disorder that affects the arteries. Arteries are blood vessels that carry blood from your heart to different parts of your body."

Types

 * Primary is more common and less severe.
 * Secondary is caused by an underlying disease, condition or other factor.

Triggers and Symptoms
Cold temperatures can bring on an attack. "During an attack, little or no blood flows to affected body parts. As a result, the skin may turn white and then blue for a short time. As blood flow returns, the affected areas may turn red and throb, tingle, burn, or feel numb."