Pain in the calves is one of the most common complaints among runners, joggers, track and field event athletes, sportspeople, etc. This condition can be categorized as either pain in the lower calf leg or pain in the upper calf leg. It is also categorized or graded depending on the severity of the injury (i.e. whether it is a calf muscle strain, calf muscle pull, or a calf muscle tear). This painful condition can occur due to a variety of reasons.