If lifting your arm above shoulder height has become painful or difficult, don’t assume you’ve torn something. Several shoulder conditions can cause similar symptoms, but the treatment depends on identifying the most likely cause.
Why won’t my arm lift?
The three most common causes are rotator cuff problems, frozen shoulder and shoulder arthritis. Although they can all make everyday activities such as dressing or reaching overhead uncomfortable, they behave differently and often need different treatment approaches.
A simple test you can try
Lift your sore arm as high as you comfortably can. Next, use your other hand or a stick to gently help the arm move further.
What might the result mean?
If your arm moves much higher with assistance, pain or muscle weakness may be limiting the movement. This pattern is commonly seen with rotator cuff problems.
If the shoulder stays stiff even when assisted, the joint itself may be restricted. Frozen shoulder and shoulder arthritis are common possibilities, although other conditions can also cause stiffness.
Can this test diagnose the problem?
No. This is not a diagnostic test. It simply helps distinguish between a shoulder that is mainly painful and weak and one that is genuinely stiff. A proper assessment is still needed to confirm the cause.
Treatment depends on the diagnosis
- Rotator cuff problems often improve with a progressive strengthening programme.
- Frozen shoulder is usually managed by maintaining gentle movement while the condition settles.
- Shoulder arthritis often responds to exercise, activity modification and appropriate pain management.
When should you seek help?
Arrange an assessment if your pain has lasted more than a few weeks, your movement is worsening, you notice significant weakness, or the pain is affecting sleep or everyday activities.
Key takeaway
Not every painful shoulder is the same. Understanding whether your shoulder is weak and painful or genuinely stiff is the first step towards finding the right treatment.
Frequently Asked Questions
Can shoulder arthritis stop me lifting my arm?
Yes. Arthritis can reduce shoulder movement and make lifting your arm painful, particularly as the joint becomes stiffer over time.
Do I need a scan?
Not always. Many shoulder problems can be diagnosed from your history and a physical examination. Scans are usually reserved for situations where they will change treatment.
Will exercises help?
In many cases, yes—but the right exercises depend on the diagnosis. Performing exercises designed for the wrong condition may delay recovery.
