Hand Sanli is an acupoint of the Hand Yangming Large Intestine Meridian, located on the radial side of the forearm, 2 inches below the transverse stripe of the elbow, in the line between the distal part of the radial tuberosity and the midpoint of the transverse stripe of the elbow (at the midpoint of the line connecting the radial edge of the biceps tendon and the lateral epicondyle of the humerus). Sanli point has the function of dredging the channels and collaterals, subduing swelling and relieving pain (eliminating swelling and pain), and clearing the intestines and internal organs. Clinically, it is mainly used in conjunction with the treatment of arm weakness, upper limb paralysis, abdominal pain, diarrhea, toothache, cheek swelling and other conditions. Because of its function of dredging the meridians and channels, reducing swelling and relieving pain, Sanli acupoint of the hand can be used to treat various disorders of the hand yangming meridian, such as numbness and pain of the arm, lack of attempt of the upper limbs, and elbow contracture and inability to extend. Because of the role of the hand Sanli point has a clear bowel and bowels, so can regulate the large intestine meridian gas, treatment of abdominal distension, intestinal sound, diarrhea and other intestinal qi disorders of the disease. Because of the hand three miles point can be through the diarrhea, has a clear diarrhea yangming meridian heat, phlegm dispersal effect, so can be treated for cheek swelling and pain, tooth pain, loss of voice, scrofula (mainly refers to the neck lymph node tuberculosis) (neck or armpit lymph node tuberculosis) and other disorders. Clinical use of Sanli of the hand to treat diseases should be operated by a professional acupuncturist, do not operate on your own.