The thigh liver meridian can be scraped along the direction of the liver meridian, from the bottom to the top, can also be scraped against the direction of the liver meridian, from the top to the bottom, clinically generally more from the top to the bottom of the main scraping, that is, from the thighs of the inner root scraped to the knee. Liver meridian from the datun point, along the lower limbs of the inner upward, in the thigh distribution in the middle of the thigh, scraping gua sha has complementary diarrhea points, along with the meridian for complementary, against the meridian for diarrhea. The liver is yin in the yang, often manifested as partial movement, partial ascension, partial heat of the yang evidence, such as liver yang hyperactivity (liver yang partial exuberance, caused by dizziness, dizziness, headache and other symptoms) caused by irritability, headache dizziness, dry mouth and tongue and other symptoms, gua sha is often to diarrhea-based. Liver yang although easy to hyper, but also liver blood deficiency (liver blood deficiency), liver yin deficiency performance, such as dizziness, tinnitus, dry eyes, pale, etc., this time should be complementary to the liver meridian, gua sha direction for a single direction, can not be back and forth gua sha. It should be noted that scraping Gua Sha should be coated with lubricating medium to avoid damage to the skin. Scraping the liver meridian needs certain technical requirements, it is recommended to operate under the guidance of a professional doctor, do not operate without authorization.