The shoulder is a ball and socket joint. It is one of the most complex joints in the human body. In a healthy shoulder joint, the ball, or humeral head, and socket, or glenoid, remain stable, while allowing maximal range of motion of function. 

Shoulder impingement syndrome is a common cause of shoulder pain that may affect anyone who performs repeated reaching and lifting over their heads.

Also known as subacromial impingement syndrome, it occurs deep inside the shoulder, when the bones of the shoulder blade and upper arm chafe against the top of the rotator cuff.

Have you been experiencing a popping or grinding pain in your shoulder, especially when lifting anything higher than your head? Or has one of your shoulders felt weaker than the other, and felt painful when held in one particular position? Although these symptoms can be common to many shoulder problems, having all of these conditions at once could mean you have suffered a SLAP Lesion Tear.

Although the shoulder boasts the largest range of motion of any joint in the human body, its remarkable flexibility can make it most vulnerable to damage caused by over-use, over-reach, and repetitive motions.