Bent toes not straight is related to local joint adhesion or contracture, tendinopathy, bony deformity, etc. Functional exercise, hot water foot soak, surgery and other treatments can be given. The following factors are related to flexion of toes: 1. Local joint adhesion or contracture: because of trauma or strain injury, the first treatment is to carry out functional exercise, after moving the toes, the hand can be used to stretch the joints, gradually increase the mobility of the toes, and the lesion can be given hot water foot soak. 2. Tendinopathy: this symptom can occur when the tendon of the extensor digitorum brevis is loose or ruptured, after diagnosis, we should investigate the tendon through surgery in time and suture and repair the tendon. 3. Bone deformity: Bone deformity such as bunion can also complicate the bending of toes, which requires orthopedic surgery. Hammertoes, acquired long-term compression, neurological injuries, etc. may also occur, and it is recommended to go to the hospital in a timely manner, complete the examination to determine the cause of the disease, and then give targeted treatment or therapy.