A group of researchers studied injuries in Major League Baseball over five years. They looked specifically at what kinds of injuries kept players from the sport. Twenty-eight percent of these were shoulder injuries. Twenty-two percent were elbow injuries.
Injuries to the knee, wrist, hand, and back were also reported. However, these injuries weren't as common. And they were less likely to keep players from the game.
Elbow injuries seemed to be on the rise. But injuries to other areas stayed about the same over the five-year period.