Tiger’s mouth area of the acupoints for the large intestine meridian of the Hegu point, the emergence of soreness suggests local lesions or other parts of the disease, including local palm lesions; headache, facial paralysis and other head and face diseases; colds and coughs and other external symptoms (feel the outside world after the main manifestation of the symptoms of the respiratory tract); menstrual disorders, dysmenorrhea, and so on. 1. Hegu, also known as the tiger’s mouth, belongs to the hand yangming large intestine meridian, the whole body of all the acupuncture points are close to the main role, if the tiger’s mouth at the soreness first need to consider whether the meridian stasis blockage caused by the local disease, mainly manifested in the palm of the hand part of the soreness and pain or numbness of the fingers. 2. According to the “Four General Acupuncture Points Song”, the Hegu acupoint can also treat facial and head diseases such as headache, facial paralysis, trigeminal neuralgia, facial pain, and crooked mouth and eyes, etc. Therefore, if the Hegu acupoint is sore, it is necessary to consider whether it is a local disease caused by meridian stasis. Therefore, if there is soreness at Hegu point, it is necessary to consider head and face diseases. 3. Hegu acupoint is an acupoint of large intestine meridian, which has the function of dispelling wind, relieving pain, activating blood circulation and promoting menstruation. If there is soreness at Hegu acupoint, it is necessary to combine it with other symptoms to consider whether there are external symptoms such as colds, coughs, etc. (which mainly manifests itself as respiratory symptoms after feeling the external evils), or other illnesses such as pain in the arms, menstrual disorders, dysmenorrhea, and stagnant labor. The Hegu point is an important point that can treat a wide range of illnesses in the body including externally-induced illnesses, pain, and gynecological conditions. If soreness occurs in this area, it is important to first consider whether it is a localized lesion, and also to combine it with other symptoms in the body to determine what kind of disease it is. If there is soreness at the Hegu point on the tiger’s mouth, it is recommended to consult a doctor as soon as possible so as not to miss out on your condition.