The thumb itself has a very large range of motion and is very important for the function of the hand. It is common in the middle-aged and elderly, and is a stenosing tendinitis lesion. Of course, external injuries, ligament strains, fractures, and joint dislocations can also cause pain in the first joint of the thumb. Depending on the cause of the pain, the appropriate treatment can be chosen. Tendonitis caused by exertional strain can be treated with topical ointments, local closed injections, and small needle treatment. Joint dislocations and fractures that are caused by external forces may require surgery to correct. For light external injuries such as ligament sprains and soft tissue injuries, topical application of Yunnan Baiyao aerosol and rest for a period of time will be sufficient.