Fingers that are bent and not straight need to be seen and treated. Congenital is treated conservatively and surgically. Trauma-induced to be immobilized, recuperated and treated surgically. Tendinitis is treated conservatively and surgically. Rheumatoid arthritis caused by medication, physical therapy. Congenital finger curvature can not be straightened, most of the surgical treatment such as incision and internal fixation. Trauma caused by, should be timely immobilization, pay attention to recuperation. Surgery can be used, such as tendon nerve suture, reset internal fixation, etc., can use anti-inflammatory pain medication such as ibuprofen. Tendovaginitis is the most common cause, should be timely braking, massage and hot compresses and other conservative treatment, conservative treatment is ineffective can be used for surgical treatment such as partial resection of narrow tendon sheath. Osteoarthropathies such as rheumatoid arthritis should be treated with medication such as methotrexate. Physical therapy such as infrared radiation can also be used. If you can’t straighten your fingers, you should go to a regular hospital in time, follow the doctor’s requirements for treatment, and follow the doctor’s instructions for medication.