Gua Sha is a therapeutic operation in traditional Chinese medicine, an external treatment technique that acts on the body surface. Gua Sha is a therapeutic operation in traditional Chinese medicine, refers to the use of different material tools such as cow horn, stone, etc., with gua sha oil as the lubricating medium, in the corresponding parts of the body surface for scraping a kind of external treatment technology. Gua Sha can dredge the meridians and collaterals, improve local blood circulation, and adjust local functions. Gua Sha can be used for the treatment of a variety of diseases in the clinic, common such as colds, coughs and other exogenous diseases, as well as cervical spondylosis, frozen shoulder, lumbar muscle strain and other bone and joint and muscular pain, and pimples, acne and other skin diseases, etc., have a certain efficacy. Gua Sha can be divided into local Gua Sha and whole body Gua Sha two types. Localized Gua Sha is suitable for patients with localized diseases, such as lumbar muscle strain, frozen shoulder, etc., is the most commonly used clinical Gua Sha way. Whole body scraping is suitable for treating systemic diseases, such as colds, coughs, and so on. It should be noted that patients suffering from bleeding disorders, such as thrombocytopenic purpura, leukemia, hemophilia can not scrape. Patients suffering from infectious diseases, such as acute osteomyelitis, infectious skin diseases can not scrape. Drunkenness, mental illness, convulsions and other patients who can not cooperate with the doctor can not scrape. Elderly patients should be cautious when the body is very weak scraping. Children can not cooperate with the treatment, should be cautious with gua sha. Major surgery or patients who have recovered from a major illness should be cautious with gua sha. In addition, the pregnant woman’s abdomen, lumbar and sacral parts belong to the prohibited scraping parts, such as scraping in this position is easy to lead to miscarriage or premature birth and so on.