Shin splints is an overuse injury of the leg often seen in runners, soldiers and people who practice sports which include a lot of jumping. In the case of tibial inflammation, there may be too high a tensile stress on the muscles that attach to the lower leg or an excessive load on the bone, as a result of insufficient shock absorption. The high tensile stress can be caused by an abnormal foot position or a different gait pattern. As a result, small bone deformities on the shin can develop that cause a nagging pain. The exact cause of shin splints is unknown.