Pain in the back of shoulder ?

History: Need to assess possibly why and duration. What sets it off? Is it acute or chronic? See a doctor before it can get worse.

See below: Upper back pain usually comes from a degenerative joint or disc in the neck or upper back. Sometimes it's from a muscle strain or sprain. It is common for back pain to refer to the shoulder blades. Early treatment options include a short course of nsaids (advil, aleve), gentle massage, moist heat, and focusing on posture. If pain lasts greater than 2 weeks see your physician.