Fingertip bending may be caused by trauma, rheumatoid arthritis, etc. Patients can be treated by wearing splints and surgical treatment. 1. Trauma: When the ligaments of the finger joints are lax due to trauma, the fingertips will be bent. Patients can wear aluminum plates or splints for external fixation of the fingers, and the fingers will gradually restore the bent state of the fingertips. 2. Rheumatoid arthritis: when the patient due to rheumatoid arthritis, resulting in the bending of the fingertips, usually appearing in the left and right hand at the same time or a single joint deformity at the same time, need to actively treat the original disease. Once the deformity seriously affects the function of the fingers, surgery is needed. When the patient has a bent finger, should promptly go to the hospital for examination to clarify the cause, and follow the doctor’s instructions for targeted treatment and treatment.