The correct technique of back scraping must be under the guidance of Chinese medicine practitioners using special scraping tools according to the direction and order of the meridians. Back scraping is the conventional physiotherapy, through the back scraping can effectively get rid of the body of the damp cold gas, but also has the blood (to promote the blood run, eliminate the body of blood stasis) and Shu muscle through the efficacy; can be effectively achieve heat detoxification (remove the body of the heat and poisonous evil), relieve fatigue and improve the function of the internal organs. But back scraping to pay attention to the correct method, first of all, to prone exposure back, choose cow horn scraping board, and smear scraping oil to prevent scraping the skin; scraping must follow the direction of the meridian run, generally from the top to the bottom of scraping, should not be back and forth until the skin out of the gua sha can be. Physical discomfort, should consult a doctor in time, specific operation is recommended under the guidance of a professional doctor.