Left Shoulder Pain
Shoulder pain is very common and has many potential causes with shoulder pain and neck pain often being closely related along with arm and shoulder pain. Further information on shoulder pain is available at NHS Choices and Arthritis Research UK.
The Cause of Shoulder Pain
People often describe a large region of one side of the upper body when they talk about what they see as shoulder pain. Shoulder related pain can include the lower part of the neck, across the upper trapezius, shoulder blade pain, thoracic pain, pain over the shoulder itself and pain running down the arm.
The potential causes of shoulder pain include:
Left shoulder pain may occur less commonly than right shoulder pain as fewer people are left handed and so use their right shoulder much more vigorously, looking over to the left repetitively as they perform activities. This may bring on changes in the tissues of the shoulder and the left sided neck joints which can give symptoms. While there are other potential causes of shoulder pain, cancer is very uncommon.