The first thing to do is to identify the cause of the deformation and curvature of the finger joints, and then carry out physical therapy, medication and surgery. Causes of deformation and bending of finger joints include rheumatoid arthritis, gouty arthritis, synovitis, etc. It is recommended to identify the cause of the disease before treatment, and target treatment. 1. Rheumatoid arthritis: the condition has not been controlled for a long time, with the aggravation of the disease, it is easy to appear joint deformity, causing deformation and bending of the joints of the fingers, you can take drugs such as methotrexate to control the progress of the disease, and surgery can be carried out to restore the joints, if necessary. 2. Gouty arthritis: patients with a history of gout, the condition of long-term uncontrolled joint deformity, you can take the main allopurine, febuxostat and other drugs to control the level of uric acid, curvature of the severity of the surgery can be repaired. 3. synovitis: patients with acute and chronic injuries, joint degeneration and other factors may cause synovial inflammation, resulting in synovial hyperplasia caused by joint deformity, you can take diclofenac and other drugs to relieve pain, but also can be surgical treatment, in the arthroscopic radiofrequency ablation or synovectomy. There are many reasons for the deformation and bending of finger joints, which may be related to osteophytes, osteoarthritis, trauma, etc. If the symptoms persist without relief, it is recommended to go to the hospital in time to find out the cause of the disease, and the doctor will provide targeted treatment. The above drugs should be used under the guidance of a doctor.