Soreness when pressing the tiger’s mouth may be caused by muscle, nerve, and soft tissue lesions in the tiger’s mouth. The tiger’s mouth is where the thumb muscles go, and localized injury or strain to the thumb muscles can induce pain. It can also be caused by tendinitis, such as frequent typing of the finger joints in daily life, or frequent washing of clothes, which can cause exudation, edema, hyperplasia, adhesions, and other inflammatory injuries to the tendons or tendon sheaths, resulting in soreness and pain in the tiger’s mouth. After this happens, patients should promptly go to the hospital to check the cause of the pain in the tiger’s mouth and then give appropriate treatment measures to treat it, such as acupuncture or local hot compresses, as well as oral medication to relieve it.