Shin splint is the term used to describe pain along the inner edge of the shin bone (tibia) in the lower leg. The medical term for the condition is medial tibial stress syndrome (MTSS).
Shin splints are an exercise-related overuse injury that causes stress on the muscles, tendons, and bone tissue. They are common in military recruits or athletes who are starting out or increasing their training activity. The symptoms usually improve with rest.