My shoulder hurts all the time. How do I know if I have a rotary cuff tear?

History and exam. Rotator cuff injuries are some of the most common injuries. A good history and exam is always important to find out the exact cause. X-rays and mris can sometimes aid in the diagnosis. An assessment with the physician is needed to determine if the reason for the pain is solely within the shoulder or if it can be referred from another area.
See orthopedic. The only way to know for sure is to have an MRI done. I would suggest starting with a visit to an orthopedic surgeon.