Pain on the inner side of the shin bone of the lower leg may be tibia fracture, periostitis, osteomyelitis or bone tumor. It is recommended that the patient go to the local hospital for early diagnosis of the cause. 1. Fracture of tibia: tibia may be fractured after being impacted by external force, and the fracture site may be swollen, painful and other symptoms. 2. Osteochondritis Dissecans: Excessive physical activity may cause damage to the periosteum of the tibia, resulting in osteochondritis dissecans. Patients often show pressure pain and swelling at the injured area. 3. Osteomyelitis: Acute osteomyelitis may cause pain in the tibia of the lower limb, and the patient may also suffer from fever, lethargy and other systemic symptoms. 4. Bone tumor: tibial bone tumor will appear local swelling and intermittent pain in the early stage, with the progress of the disease can gradually aggravate, develop into persistent pain. When patients are clearly diagnosed, they need to actively cooperate with the doctor to prevent the development of the disease, which will affect the treatment effect in the later stage.