It may not be normal for a 7-year-old child to walk with a limp 2.5 months after a fracture of the fifth metatarsal of the left foot; it may be related to poor fracture healing, traumatic arthritis and other factors. 1. Poor fracture healing: If the patient walks on the ground too soon, poor fracture healing may occur, resulting in symptoms of walking limp. The patient’s current condition is determined by foot x-rays and other imaging tests. After poor fracture healing is determined, prompt medical attention is needed and surgery may be required. 2. Traumatic arthritis: If the articular surfaces at the fracture site are damaged, traumatic arthritis may be induced, and the patient may experience plantar pain and lameness. The injury is diagnosed by physical examination and imaging. Conservative treatment is the mainstay at first, using physical therapy, functional rehabilitation and other measures, which can promote the symptoms to subside; for patients with serious conditions, surgery can be used to improve the condition by fusing the small local joints. It is recommended that the patient should consult the doctor in time and follow the doctor’s instructions, not blindly use drugs.