Calf fracture for more than 30 years sequelae are serious, such as calf deformity, chronic osteomyelitis, traumatic arthritis, etc., and usually can be re-treated. 1. Calf deformity: If the patient has a serious calf fracture, such as a comminuted fracture, it may lead to deformity healing at a later stage due to poor alignment of the fracture location. It can be corrected by re-operation, but the surgery may be difficult due to the long period of time. 2. Chronic osteomyelitis: If infection occurs after calf fracture surgery, it may lead to chronic osteomyelitis in severe cases, which can be treated by flap surgery, repeated debridement surgery, bone grafting and bone handling surgery. 3. Traumatic arthritis: If the calf fracture is in the knee joint area, it may lead to localized traumatic arthritis, with discomfort such as swelling, stiffness and pain in the knee joint, which may affect walking in serious cases, and is usually treated with surgery. Calf fracture for more than 30 years sequelae are serious, due to the long time, it is recommended to go to the regular hospital, with the appropriate examination, diagnosis and treatment.