The bench press per se is not a risky exercise. When done right, it can help improve upper body strength and size. It's only when form takes a back seat to numbers and when it's grossly overtrained that problems result. Injuries occur in the shoulders and elbows when the bench press is overtrained, poor technique is used, such as rebounding the bar off the chest and bridging, no other exercises for the upper body are included in the program, and there are no core exercises done for the upper back. Quite often, it's a combination all these factors.