Shoulder Pain After 40? Why Your MRI Might Show Problems Even If You Feel Fine

Shoulder pain is a common ailment, but increasingly, imaging tests are revealing a surprising truth: many adults over 40 have rotator cuff abnormalities visible on MRI, even without experiencing any symptoms. A recent population-based study from Finland, published in JAMA Internal Medicine in February 2026, found that rotator cuff issues are nearly universal with age, challenging conventional wisdom about diagnosing and treating shoulder pain.

What Did the Study Discover?

Researchers examined the MRI scans of 602 Finnish adults aged 41 to 76. The results were striking: 96% of those scanned had some form of rotator cuff abnormality, including fraying, tears, or other structural issues. However, the presence of these abnormalities didn’t correlate strongly with whether or not participants reported shoulder pain or dysfunction [1]. This suggests that many of these findings are simply a normal part of aging, rather than indicators of a problem requiring intervention.

The Rotator Cuff: What Is It and What Does It Do?

The rotator cuff is a group of muscles and tendons that surround the shoulder joint. It’s crucial for controlling arm movement and stability [2]. As we age, these tissues naturally wear down, much like other parts of the body.

Why Are We Seeing More Abnormalities on MRIs?

The increasing use of MRI scans is likely a major factor. As more people undergo imaging for shoulder pain, more incidental findings are being discovered. Brian Feeley, an orthopedic surgeon at the University of California, San Francisco, notes that MRIs reveal a broader picture of aging, showing how our bodies change structurally over time [2]. The rate of rotator cuff repair surgeries in the United States rose by over 1% annually between 2007 and 2016, potentially linked to increased MRI usage [2].

Does This Indicate MRIs Are Useless for Shoulder Pain?

Not necessarily, but the Finnish study suggests they shouldn’t be the sole basis for diagnosis or treatment. The imaging test can still be valuable in certain cases, but it’s important to consider the clinical picture – the patient’s symptoms, physical exam findings and overall health – before jumping to conclusions based on an MRI report.

Implications for Treatment

The findings highlight the potential for over-treatment of incidental findings. Many people may be undergoing unnecessary injections or even surgery for rotator cuff abnormalities that aren’t actually causing them pain or functional limitations. The study reinforces the idea that a conservative approach – focusing on physical therapy, pain management, and lifestyle modifications – may be the best course of action for many individuals with shoulder pain [3].

Key Takeaways

• Rotator cuff abnormalities are extremely common in adults over 40, often present even without symptoms.
• MRI scans frequently reveal these abnormalities, but they don’t always indicate a need for treatment.
• Diagnosis and treatment of shoulder pain should be based on a comprehensive assessment, not solely on MRI findings.
• Over-imaging and unnecessary interventions may be contributing to rising healthcare costs and potentially harming patients.

Frequently Asked Questions

What is an incidental finding on an MRI?

An incidental finding is an unexpected discovery made during an imaging scan that wasn’t the primary reason for the test. In this case, rotator cuff abnormalities found on an MRI ordered for another reason, or even for shoulder pain, but not directly causing the symptoms.

Should I be concerned if my MRI shows a rotator cuff tear?

Not necessarily. The presence of a tear doesn’t automatically mean you need surgery. Discuss your symptoms and treatment options with your doctor.

What are the symptoms of a rotator cuff tear?

Symptoms can include pain, weakness, and limited range of motion in the shoulder. However, many people with rotator cuff tears experience no symptoms at all.