Finger joints that are stuck in flexion and extension need to be treated according to the cause of the problem. Some of the causes that can be considered are stenosing tenosynovitis, rheumatoid arthritis, gouty arthritis, etc. The treatment usually consists of medication and surgery. 1. Stenosing tenosynovitis: it can be treated with anti-inflammatory and analgesic drugs such as ibuprofen extended-release capsules, diclofenac sodium extended-release tablets, indomethacin, etc. Surgical treatment such as tenotomy and decompression of tenosynovial sheaths can also be considered in case of particularly severe symptoms. 2. Rheumatoid arthritis: in this case, in addition to the above symptoms, often accompanied by local joint pain, swelling and other symptoms, you can use diclofenac sodium extended-release tablets, lancet sulfapyridine enteric-coated tablets, methotrexate and other drugs for treatment. 3. Gouty arthritis: The above symptoms caused by gout can be relieved by colchicine and ibuprofen. The above drugs should be used under the guidance of professional doctors. When the finger joints are stuck in bending and straightening, it is recommended to consult a doctor in time to clarify the cause of the disease and receive appropriate treatment.