Pain in the index finger joint may be caused by fatigue pain due to excessive force on the index finger caused by long-term use of keyboard work, playing games or playing cell phones, etc., which can be relieved by moderate rest in general. However, it may also be related to local bone, joint capsule, muscle, tendon and other tissue lesions: 1, trauma: sports process leading to impact, friction and other injuries to the index finger, will mostly cause pain in the index finger joint; 2, index finger tenosynovitis: index finger joint local pain, pressure pain, and there are joint movement disorders, joint popping and other symptoms, may be due to index finger tenosynovitis; 3, gouty arthritis: body Gouty arthritis caused by abnormal purine metabolism usually results in pain in a single joint or multiple joints of the index finger, and most patients also have red, swollen joints and elevated skin temperature; 4. In addition, index finger joint pain may also be a symptom of osteoarthritis, joint tumors and other diseases. It is recommended that patients with index finger joint pain who are unable to find a clear cause should go to the hospital for treatment in a timely manner.