After gua sha patients will appear skin flushing, purplish red and other color changes, and accompanied by local slight pain or heat sensation and other symptoms. Gua Sha generally refers to some symptoms after scraping Gua Sha, such as patients will appear skin flushing, purplish red color changes, or pimple-like spots, stripes like plaques and other changes, and accompanied by localized slight pain or heat, belongs to the normal phenomenon. Gua Sha is clinically more common in Chinese medicine physical therapy techniques, can activate blood stasis (promote blood flow, eliminate blood stasis in the body), relax muscles and collaterals, regulate qi and blood. For serious cardiovascular and cerebrovascular disease, swelling, extreme weakness or wasting people, leukemia and other bleeding tendency, should be prohibited Gua Sha. Scraping need to be operated by a professional doctor, do not operate without authorization, scraping gua sha if there is any discomfort please consult a doctor in a timely manner, so as not to cause adverse consequences.