Back scraping can be according to the back of the muscle direction as well as the distribution of meridians and walk situation for the corresponding operation. Scraping in the back is more commonly used a way of operation, specifically can use the specialized ox horn scraping board according to the back meridian and muscle direction for the corresponding scraping. In the spine on both sides of the distribution of the bladder meridian of the two lateral lines, respectively located in the back of the center line next to open 1.5 inches and 3 inches, parallel to the distribution of the spine, so in the scraping can follow the meridian direction vertically from the top to the bottom scraping, in the spine on both sides of the muscle can be scraping board horizontally for scraping. Pay attention to avoid the shoulder blade and spine and other bony protruding parts, so as not to cause pain and muscle tissue damage. In the human body to carry out gua sha operation need to go through a systematic study and training, it is recommended to have gua sha needs of patients to regular hospital clinic by professional doctors to operate, not blindly operate by yourself, so as not to cause organism damage.