The more reddish gua sha does not necessarily mean that the body more moisture. The red referred to by gua sha is the body’s internal pathologic reaction of “gua sha”, called “gua sha”, also includes gua sha stimulation after the manifestation of the “gua sha” on the surface of the body, called The “Gua Scars”. “gua sha” rash signs, that is, the skin appears red spots like corn, with finger through the skin, slightly impede the rash points, or pathologically positive reaction material. When scraping gua sha, scraping tool and skin after repeated friction, will lead to skin soft tissue damage, subcutaneous blood vessels appear rupture situation, lead to subcutaneous blood vessels blood oozing, so as to make scraping site appear red. After scraping gua sha color depth and scraping strength, physical factors, some blood disease related. Such as scraping the heavier strength, subcutaneous blood vessel rupture bleeding situation is more, resulting in scraping after the red color. Some people are also because of the physical reason, capillary brittleness is higher, or some blood system diseases, after scraping Gua Sha color more red. When scraping gua sha patients can’t just pursue scraping color the redder the better. If the patient has the need to scrape, it is recommended to go to the hospital, by the doctor to standardize the operation, do not blindly self-scraping, to avoid the adverse consequences.