Your shoulder may click or pop when you move it. This is known as crepitus. A cracking, grinding, or popping shoulder may be accompanied by a sharp pain or warmth. Shoulder popping and pain can be quite disarming, and your symptoms are likely the result of an underlying health condition or injury. What is crepitus?
Shoulder impingement occurs when shoulder tendons and muscles rub against the shoulder bones. When shoulder pain from this issue is severe, it makes it difficult to work, play sports or do everyday tasks. If left untreated, shoulder impingements can cause further problems. Physical therapists can help prevent a shoulder impingement from getting worse. They can