''Sometimes called coining, spooning or scraping, Gua sha is defined as instrument-assisted unidirectional press stroking of a lubricated area of the body surface that intentionally creates ''transitory therapeutic petechiae'' representing extravasation of blood in the subcutis.''
Gua sha has been used for centuries in Asia, in Asian immigrant communities and by acupuncturists and practitioners of traditional East Asian medicine worldwide. With the expansion of traditional East Asian medicine, Gua sha has been used over broad geographic areas and by millions of people. It is valuable in the treatment of pain and for functional problems with impaired movement, the prevention and treatment of acute infectious illness, upper respiratory and digestive problems, and many acute or chronic disorders. Research has demonstrated Gua sha radically increases surface microperfusion that stimulates immune and anti-inflammatory responses that persist for days after treatment.
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