I do mma an weight train. i got surgery on my shoulder, 5cm tear on my rotator remove my bursa sac an shaved my collar bone. how did i do it? thoughts

Injury: Mma is very severe stress on all joints, bones, muscles! any severe activity/sport can cause serious injuries. Injuries do become easier to get if an athlete takes anabolic steroids. Sure, they help performance, but at a significant price. More injury risk because muscles get too strong for their attachments. Anyway, follow your doctors advice so that you get better.

Any number of ways: As a mma practitioner and a doc who treats mma fighters on a regular basis, i can tell you any number of ways you may have injured your rotator cuff. Shoulder injuries are common with grappling, going for double legs: jiu jitsu puts a lot of strain on the shoulder and if you have a lot of muscle from wt lifting it is easier to get shoulder submission injuries than someone with less muscle mass.