 Hi, I am Dr. Sushal Shantakumar. I am a consultant shoulder surgeon practicing in Manipal Hospital's Bangalore. The shoulder can dislocate if there is a significant trauma or significant injury to the shoulder. Most commonly if you fall on an outstretched hand or it could be due to a direct trauma to the shoulder joint. This is one of the lesser common injuries of shoulder dislocation. So it could also be due to some specific sports like for example, smashing a volleyball or smashing when you're playing badminton or repetitive throwing in people who play baseball or during the act of pitching, this can cause dislocations. In a smaller subgroup of patients, people who are born with inherent instability or born with inherent laxity of the capsules, they can have shoulder dislocations.