A comminuted fracture of the second joint of the great toe mostly refers to a comminuted fracture of the second metatarsophalangeal joint, and whether the first joint can be moved or not cannot be generalized, but needs to be determined on a case-by-case basis. If a comminuted fracture of the second metatarsophalangeal joint occurs with violence and does not involve the articular surfaces of the metatarsophalangeal joints, or if the articular surfaces are involved but are well aligned after surgical treatment, and the joint function is not affected after fracture recovery, the first metatarsophalangeal joint can be moved normally. If the comminuted fracture of the second metatarsophalangeal joint involves the articular surface of the metatarsophalangeal joint and is treated conservatively, with movement of the fracture end after manipulative repositioning and poor alignment, and due to the anatomical changes in the articular surface after fracture healing, the movement of the first metatarsophalangeal joint will be affected to a certain degree, and how much will be affected will have to be judged according to the specific situation. Patients with comminuted fractures of the second metatarsophalangeal joint need to be seen regularly.