When the trapezius muscle is pronounced, gua sha is not significantly useful for the improvement of this condition, and the patient is advised to perform appropriate special exercises. The trapezius muscle is located in the superficial subcutaneous layer of the collar and back and is the most vulnerable muscle. The trapezius muscle has the function of immobilizing the back of the neck and shoulders and coordinating their normal movements. Gua Sha is one of the traditional natural therapies of Chinese medicine, which is based on the theory of meridian skin in Chinese medicine, and uses a Gua Sha board to scrape on the surface of the body to promote the circulation of qi and blood in order to achieve the effect of dredging the meridians and collaterals, promoting qi and blood circulation (promoting gas operation to make blood flow), and adjusting the functions of the internal organs. Scraping is not able to eliminate the muscle and make the trapezius muscle thinner and smaller. Want to adjust the trapezius muscle, it is recommended that you can do some strength training of shoulder muscle groups, not recommended scraping.