Proper gua sha treatment under the guidance of a medical professional is generally not harmful. If the operation is improper, there may be harm. Gua Sha refers to through the special scraping apparatus and the corresponding techniques, dipped in a certain medium in the body surface for repeated scraping, friction, so that the skin localized “Gua Sha” changes, so as to achieve the role of blood through the role of Gua Sha. In the process of scraping Gua Sha will produce burning pain. The person who is weak should not carry out Gua Sha therapy. Healthy people in the system, after the correct gua sha is usually only manifested in the skin flushing, localized heat, body relaxation; and physical problems in the patient in the gua sha, the skin surface will appear red, purple or black spots, that is, gua sha marks, generally 5 ~ 7 days will automatically subside. The operation of gua sha treatment needs to be carried out by professional physicians, do not operate by yourself.