Shoulder Cracking and Popping: Causes, When to Worry, and What It Means
- Mar 2
- 3 min read
Updated: 4 days ago
By Dr. Jeffrey Peng, MD · Updated August 2026
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Shoulder cracking and popping sounds can be unsettling. Many patients worry that a click or pop means a rotator cuff tear or the start of arthritis. In the vast majority of cases these mechanical symptoms are harmless. There are situations, however, where shoulder clicking can signal an underlying issue that deserves attention.
Why Does My Shoulder Click or Pop?
Shoulder cracking and popping are extremely common and usually not a sign of a significant problem. Normal anatomical variations within the shoulder joint are one of the most frequent explanations. As the rotator cuff tendons (particularly the supraspinatus) move underneath the coracoacromial arch during shoulder motion, these tissues can make brief contact with surrounding structures. A naturally tight subacromial space, mild bursal thickening, or subtle bony differences can all contribute to clicking, popping, or catching as the tendons and bursa glide. In the absence of pain or functional limitation, these mechanical symptoms are generally considered benign.
When Should You Worry About Shoulder Clicking?
When clicking or popping is accompanied by pain, weakness, or restricted range of motion, it may suggest subacromial impingement, rotator cuff tendinopathy, or a partial- or full-thickness rotator cuff tear. A 2024 prospective study in the Journal of Shoulder and Elbow Surgery examined 100 patients with suspected rotator cuff pathology and found that subjective mechanical symptoms like clicking or popping were not associated with full-thickness rotator cuff tearing or other MRI-confirmed abnormalities. As a diagnostic test for full-thickness rotator cuff tearing, subjective shoulder mechanical symptoms showed poor accuracy. Clicking with pain should prompt evaluation, but it is not a definitive sign of rotator cuff damage.
Can Shoulder Osteoarthritis Cause Clicking and Popping?
Shoulder clicking and popping can sometimes be a symptom of glenohumeral osteoarthritis. As cartilage wears down, joint friction increases and bone spurs can form. These changes produce mechanical grinding, clicking, or popping — particularly when the arm is raised, rotated, or moved across the body. Patients often describe these sensations as crepitus and may notice increasing stiffness or deep aching pain with activity. Persistent or painful clicking accompanied by stiffness or reduced function should raise suspicion for underlying degenerative joint disease.
What Is Snapping Scapula Syndrome?
Snapping scapula syndrome occurs when there is abnormal contact or friction between the underside of the scapula and the rib cage. Patients often describe a grinding, snapping, or popping sensation near the shoulder blade. It is seen more frequently in people who perform repetitive overhead or throwing motions — swimmers, baseball players, weightlifters, or rowers. Poor posture, scapular dyskinesis, muscle imbalances, or bursal inflammation can disrupt the smooth scapulothoracic interface and produce audible or palpable snapping.
Can Joint Hypermobility Cause Shoulder Popping?
Joint hypermobility can lead to mechanical symptoms without structural damage. When the ligaments and connective tissues that stabilize the shoulder are more elastic than usual, the joint can move beyond its normal range and produce more frequent joint sounds. This is particularly common in younger individuals, dancers, gymnasts, or those with naturally flexible joints. Persistent instability or frequent subluxations alongside clicking may suggest a more complex connective tissue disorder and warrants evaluation.
How Common Are Shoulder Findings in People Without Pain?
Mechanical symptoms like shoulder clicking are incredibly common even in people with no shoulder pain. An ultrasound-based study found that 96% of asymptomatic men had detectable shoulder findings, including bursal thickening and signs of acromioclavicular joint osteoarthritis. Shoulder clicking or popping often occurs in the absence of clinically significant pathology and is frequently just normal variation in anatomy and tissue movement.
When to See a Doctor for Shoulder Clicking
Most cases of shoulder cracking and popping are benign and do not require treatment. If the sounds are consistently accompanied by pain, weakness, instability, or a decline in function, further evaluation is warranted. For the vast majority of people, hearing a pop or click during shoulder movement is not a cause for concern.
If you are experiencing shoulder pain alongside clicking or popping, schedule a consultation so we can perform a proper evaluation and develop a treatment plan tailored to your needs.
References
1. Zhang D, Dyer GSM, Earp BE. The significance of subjective mechanical symptoms in rotator cuff pathology. J Shoulder Elbow Surg. 2024;33(11):2441-2447. doi:10.1016/j.jse.2024.02.024.
2. Girish G, Lobo LG, Jacobson JA, et al. Ultrasound of the shoulder: asymptomatic findings in men. AJR Am J Roentgenol. 2011;197(4):W713-W719. doi:10.2214/AJR.11.6971.
Medical Disclaimer: This content is for educational purposes only and does not substitute for the medical advice of a physician. Always consult your healthcare provider before beginning any new treatment program.
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