Reasons for Shoulder Pain?
The shoulder is a highly complex joint that is particularly susceptible to injury. As it is capable of performing an extensive range of movements, the shoulder relies on a complex group of strong muscles, tendons and ligaments (rotator cuff) to maintain stability and prevent it from moving and sliding around in its socket.
However, injury and/or overuse during work or sport can lead to the stretching & tearing of these ligaments, rendering them too loose to sufficiently keep the shoulder in position. This causes it to become unstable and leads to irritation and pain in the shoulder blades.