The Gua Sha from pushing the back may be caused by heavy dampness. When the body is invaded by external forces, such as wind, cold and dampness, it is easy to experience back pain and other discomfort, which needs to be improved by back-pushing therapy. The back pushing therapy has the effect of draining the meridians and dispersing cold, moving qi and blood, and expelling cold and toxins from the body. The common factors for pushing the back out of gua sha are the following: 1. Physiological: normal push back therapy generally does not produce gua sha, only leads to skin redness or local heat. If the back of the push is not professional, too strong, push back too long, or push back too often, long-term stimulation of the back of the skin, resulting in capillary rupture, red blood cell seepage, the formation of back inflammatory reaction, thus appearing red plaque, namely the phenomenon of gua sha; 2, pathological: when the blood circulation is normal, capillary no blood stasis, under the normal push back operation, generally will not be gua sha. If the color of Gua Sha is black and purple, it usually indicates that the body is heavy with dampness, and there is mostly blood stasis or wind cold in the body, which is common in vascular occlusive vasculitis, cold urticaria, cold erythema, rheumatoid arthritis, etc. There may also be old illnesses. If the gua sha is bright red, it suggests blood heat in the patient’s body and is commonly associated with acne, herpes simplex, dermatitis, gynecological inflammation, etc. There are many reasons for the Gua Sha behind the push, which need to be analyzed in the context of the patient’s actual situation. Most of the push back after the gua sha can subside in 3-5 days, but there are some people with poor physique may be longer, you can accelerate the absorption of local subcutaneous bleeding by local heat compress and proper rest. If it doesn’t subside for a long time, it’s best to go to the hospital in time to avoid infection or adverse reactions caused by other diseases.