Shoulder pain and stiffness can significantly disrupt daily activities, making tasks such as dressing, reaching overhead, and sleeping uncomfortable. While frozen shoulder, or adhesive capsulitis, is a common cause of these symptoms, it is not the only condition responsible for restricted movement. Identifying the exact cause of shoulder pain is crucial, as various conditions require different treatment approaches.
Frozen shoulder occurs when the capsule surrounding the shoulder joint thickens and tightens, leading to restricted movement and pain. However, similar symptoms can arise from tendon injuries, arthritis, or nerve issues. To distinguish frozen shoulder from other problems, it’s essential to assess how much the shoulder can move independently versus when assisted by another person. With frozen shoulder, movement is restricted in both scenarios, whereas a rotator cuff injury might allow more movement when assisted, indicating weakness rather than joint stiffness.
Frozen shoulder can develop as a primary condition without an obvious trigger, often linked to diabetes and thyroid disorders, or as a secondary condition following an injury, surgery, or extended immobility. People with diabetes are at a higher risk of developing frozen shoulder, although it is not always the cause of shoulder pain in these individuals.
Beyond frozen shoulder, there are several other potential causes of persistent shoulder pain. These include rotator cuff injuries, which affect the stability and movement of the shoulder; arthritis, which damages the joint; and calcific tendinitis, where calcium deposits lead to severe pain. Nerve problems originating from the neck can also cause shoulder pain, alongside labral injuries, acromioclavicular joint pain, fractures, and dislocations. Infections or inflammatory conditions may also result in severe pain and swelling.
If shoulder pain persists, repeatedly returns, disrupts sleep, or progressively limits movement, it is advisable to seek medical evaluation. Early assessment can help differentiate between joint stiffness, tendon damage, and other causes. Urgent medical care is necessary if shoulder pain follows a significant injury or is accompanied by fever or symptoms indicative of a medical emergency, such as chest pressure or breathlessness.
Protecting shoulder health involves avoiding forcing painful movements and refraining from aggressive stretching exercises until the underlying cause is understood. A balanced recovery plan may include activity modification, prescribed exercises, and treatment for underlying conditions. Accurate diagnosis is vital for effective care, as persistent shoulder pain should not automatically be attributed to frozen shoulder.