Finger joint bending stiffness may be rheumatoid arthritis, tenosynovitis or cold weather and other factors, need to further improve the relevant examination and diagnosis of the specific causes of joint warming, drugs and surgery and other treatments. 1. Rheumatoid arthritis: when rheumatoid arthritis affects the finger joints, patients will experience morning stiffness, which is similar to the symptom of stiffness in the finger joints. In this case, anti-rheumatic drugs such as Leflunomide, non-steroidal anti-inflammatory drugs such as Celecoxib and glucocorticosteroids such as Prednisone Acetate are required for rheumatoid arthritis, followed by surgical treatments if necessary. 2. Tenosynovitis: If there is acute or chronic inflammation in the tendon sheaths of the fingers, there will be symptoms of stiffness in bending of the joints of the fingers. The treatment of tenosynovitis includes analgesic treatment with non-steroidal anti-inflammatory drugs such as indomethacin, antimicrobial treatment and other medications, as well as closure and surgical treatments. 3. Blood circulation in the finger area may slow down in cold environments, leading to a decrease in the local temperature of the fingers, which leads to reduced finger function and stiffness of the finger joints, which can be warmed up, and if the symptoms are still not relieved, prompt medical attention is needed. There may be other reasons for the stiffness of the finger joints, so it is recommended to go to orthopedics, rheumatology and other related departments in regular hospitals for further diagnosis.