Finger joint swelling and inability to bend is not necessarily gout, may also be rheumatoid arthritis, tenosynovitis and other diseases. 1. Gout: gout patients will appear joint redness, swelling, heat and pain, dysfunction, gout stone and other manifestations, if the gout stone occurs in the finger joints, there will be localized swelling, can not be bent and other manifestations. 2. Rheumatoid arthritis: patients with rheumatoid arthritis experience joint pain, swelling, morning stiffness, deformity, restricted movement and other symptoms, so patients with rheumatoid arthritis will experience symptoms of swollen and unbendable finger joints. 3. Tenosynovitis: Tenosynovitis is considered to be related to chronic strain, trauma, infection and other factors. Patients will have joint tenderness, localized pain, limited joint movement and other manifestations. If the patient’s finger joints tendovaginitis, it will be swollen and can not be bent. There are many reasons why the finger joints are swollen and unbendable, it is recommended to consult a doctor when the finger is swollen and unbendable, to clarify the cause and standardize the treatment under the guidance of the doctor.