Regulating the scrapping of Yin and Yang Can obviously regulates the balance of Yin and Yang in the function of zang-fu organs. For example, for patients with excessive peristalsis, abdominal and back scraping can inhibit excessive peristalsis and return to normal. On the other hand, people with decreased intestinal peristalsis can promote their peristalsis to return to normal. This shows that scraping can improve and adjust the function of viscera and balance the yin and yang of viscera. Promoting blood circulation and removing blood stasis can regulate muscle contraction and relaxation, so that the pressure between tissues can be adjusted, thus promoting blood circulation around scraping tissues and increasing tissue blood flow, thus playing the role of promoting blood circulation and removing blood stasis and promoting tissue regeneration. The therapy of relaxing tendons and dredging collaterals is mainly to enhance local blood circulation and raise local tissue temperature. In addition, under the direct stimulation of scraping plate, the pain threshold of local tissue is increased. The third is to stretch the tense or spasmodic muscles through the role of scraping board, thus eliminating the pain.

The main indication of traditional scraping is scraping disease, and the instruments used are porcelain (the edge of bowls, plates, spoons and cups), metal (copper coins, silver coins, aluminum coins, metal plates), and biology (hemp cotton balls and mussels). Scraping sites are back, neck, chest and abdomen, cubital fossa and popliteal fossa. Scraping plates are divided into different types according to their different materials. According to the research of traditional medicine in China, Bian Shi is the best, followed by pure horn, jade and stone, and porcelain is also good. Plastic is not suitable. Just like the scraping method, the scraping tool is very simple and convenient. Anything with smooth edges, such as combs and porcelain cup lids, can be used for scraping. Of course, if it is used for a long time or as a treatment, it is better to use a regular scraping board. Natural buffalo horn is selected as the scraping board, which has non-toxic stimulation and chemical adverse reaction to human muscle surface. Moreover, buffalo horn itself is a kind of traditional Chinese medicine, which has the functions of promoting qi circulation, promoting blood circulation and nourishing.