- Flushing (physiology)
Name = Flushing
ICD10 = ICD10|R|23|2|r|20
ICD9 = ICD9|782.62
For a person to flush is to become markedly
redin the faceand often other areas of the skin, from various physiological conditions. Flushing is generally distinguished, despite a close physiological relation between them, from blushing, which is milder, generally restricted to the face or cheeks, and generally assumed to reflect embarrassment. Flushing is also a cardinal symptom of carcinoidsyndrome – the syndrome that results from hormones (often serotoninor histamine) being secreted into systemic circulation.
Causes of flushing
Sexual arousal(see section to follow)
* An abrupt cessation of physical exertion (resulting in
heartoutput in excess of current muscular need for bloodflow)
* Physiological response to
vasodilators — for instance, a recent high dose of niacin, nitroglycerine, calcium channel blockers, or any drug that causes release of adrenal hormones that raise blood pressure such as stimulants
* Post-menopausal decrease in estrogen production
* Neuroendocrine tumors:
carcinoid syndrome, pheochromocytoma, VIPoma, thyroid medullary carcinoma
* Various forms of
* Mast cell tumor:
* Various psychedelics or other drugs, such as 3-Quiniclidinyl Benzilate(BZ) or
Scombroid food poisoning(eating spoiled fish)
Commonly referred to as the sex flush, vasocongestion (increased
bloodflow) of the skincan occur during all four phases of the human sexual response cycle. Studies show that the sex flush occurs in approximately 50-75% of females and 25% of males, yet not consistently. The sex flush tends to occur more often under warmer conditions and may not appear at all under cooler temperatures. It has also been commonly observed that the marked degree of the sex flush can predict the intensity of orgasmto follow.
femalesex flush, pinkish spots develop under the breasts, then spread to the breasts, torso, face, hands, soles of the feet, and possibly over the entire body. Vasocongestionis also responsible for the darkening of the clitorisand the walls of the vaginaduring sexual arousal. During the malesex flush, the coloration of the skin develops less consistently than in the female, but typically starts with the epigastrium (upper abdomen), spreads across the chest, then continues to the neck, face, forehead, back, and sometimes, shoulders and forearms.
The sex flush typically disappears soon after
orgasmoccurs, but this may take up to two hours or so, and sometimes, intense sweating will occur simultaneously. The flush usually diminishes in reverse of which it appeared.
* [http://www.clevelandclinicmeded.com/medicalpubs/diseasemanagement/endocrinology/flushing/flushing.htm Flushing] by Chrisstian Nasr, MD [http://heathives.com/pictures-of-cholinergic-urticaria-heat-hives/ Flushing of skin during cholinergic urticaria reaction]
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