Ankle fracture refers to the fracture of talus, tibia, fibula, etc. 100 days after the fracture, there is still pain when walking, the possible reasons are delayed healing of fracture, soft tissue adhesion, traumatic arthritis and so on. 1. Delayed fracture healing: If the fracture injury is more serious or combined with vascular injury, blood circulation becomes poor, resulting in delayed healing of the fracture, such as fibula fracture does not heal, the fracture may appear 100 days after walking pain. 2. Soft tissue adhesion: because the ankle joint needs to be fixed after the fracture of the lower limb, to avoid activities, and the formation of easy scarring after the injury, resulting in soft tissue adhesion, which can cause pain in the ankle joint. 3. Traumatic arthritis: if the fracture involves the articular surface of the ankle joint, resulting in cartilage damage to the articular surface, causing traumatic arthritis, which can also cause symptoms of pain when walking. There are many reasons for walking pain 100 days after ankle fracture, if the symptoms continue to be unrelieved, it is recommended to consult a doctor in time to clarify the cause of the disease and carry out targeted treatment.