What are the main causes of shoulder dislocations?
The main cause of a shoulder dislocation is (1) Direct upward blow to the shoulder or backward force on an extended arm.(2) End result of a severe shoulder sprain. (3) Congenital abnormality, including shallow or malformed joint surfaces. (4) Powerful muscle twisting or a violent muscle contraction(including contraction from seizures or electrocution). Some people can willfully produce a recurrent dislocation.