After playing basketball calf front bone pain, consider with fatigue periostitis, lactic acid accumulation, fatigue fracture and other reasons. 1. Fatigue periostitis: when the amount of exercise is too large, and the stomach is sufficiently stretched before exercise, it is local congestion and edema, resulting in aseptic inflammatory reaction of the periosteum of the bone in front of the calf, forming fatigue periostitis, and pain in the front side of the calf. The pain is obvious after activity, and the symptoms are reduced after rest. 2. Lactic acid accumulation: when playing basketball, the leg muscles are fatigued, leading to the accumulation of acidic products (such as lactic acid and carbon dioxide) in the calf muscles as well as in the bone area, which can cause local pain symptoms. 3. Fatigue fracture: for example, long-term excessive lower limb exercise, prompting the lower limb bone gradually caused by fatigue injury, until the fracture. This leads to persistent pain symptoms. It is recommended to pay attention to rest, avoid exertion, strenuous exercise, excessive weight bearing. At the same time, if the symptoms are not relieved, or even aggravated, it is recommended to go to the hospital in time for examination.