Other names: Raynaud’s disease, Raynaud’s disease

Raynaud’s phenomenon is a name for binge whitening or Blueness fingertips on hands and less often in the leg, resulting from exposure to cold or depending on the emotion.

She suffers almost exclusively women. Seizure usually lasts no longer than 15 minutes and is adjusted after heating hands, return to heat or mentally calming. At the end of the bout, blood rushes to the fingers (redness). Frequent repetition can lead to atrophy (decrease) in tissue at the last articles of fingers.

The cause of the phenomenon is the abnormal contraction of small blood vessels. The signal for such a reaction are nerve impulses coming fibers called. Sympathetic system, whose function is, among other things the maintenance of suitable blood vessel lumen. Sympathetic increases its activities in adverse situations, such as. Exposure to cold or stress. The impulse transmissions in this system serves noradrenaline substance, chemically and functionally related to adrenaline. Both are in these circumstances also frequently flushed directly into the blood from the adrenal gland and increase the effect of signals coming sympathetic fibers.

In many cases it is not possible to determine the cause of Raynaud’s phenomenon. Then it is called. Primary problem and is closed as Raynaud’s disease. Secondarily phenomenon arises as a response to long-term overloading fingers (eg. Play a musical instrument, typing, etc.), And their injuries. It may also be a reflection or a harbinger of more serious diseases of connective tissue (collagen, scleroderma) and atherosclerosis.

When symptoms will consult a medical practitioner, the danger of delay are threatened.