Pain may make it difficult to dress, bathe, reach for objects, participate in therapy, or use the affected arm. In some patients, shoulder pain can also contribute to reduced movement and further weakness.
Post stroke shoulder pain has several possible causes, and the right treatment depends on identifying what is contributing to the pain.
At Antara Senior Care, stroke rehabilitation follows a PMR-led, multidisciplinary approach, with rehabilitation tailored to the patient's neurological and functional needs. Depending on the assessment, the programme may include physiotherapy, occupational therapy, positioning strategies, pain management, functional arm training, and caregiver education.
The goal is not simply to reduce pain—it is to help the stroke survivor use the affected arm as safely and effectively as possible in everyday life.
Why Does Shoulder Pain Occur After a Stroke?
After a stroke, the muscles around the shoulder may become weak, stiff, or poorly coordinated.
The shoulder is a complex joint that depends on coordinated movement between multiple muscles and structures. When neurological control changes, normal shoulder mechanics can be disrupted.
Several factors may contribute to hemiplegic shoulder pain, including:
Muscle weakness
Reduced shoulder movement
Changes in muscle tone
Poor positioning
Subluxation
Rotator cuff or other soft-tissue problems
Joint stiffness
Spasticity
Incorrect handling or pulling of the affected arm
More than one factor can be present at the same time.
This is why identifying the underlying cause is an important first step.
What Is Hemiplegic Shoulder Pain?
Hemiplegic shoulder pain refers to pain affecting the shoulder on the side weakened or paralysed by stroke.
The affected arm may feel:
Heavy
Weak
Stiff
Painful during movement
Difficult to position
Difficult to use during daily activities
Some patients may experience pain even when the arm is resting, while others primarily notice discomfort during movement.
The severity varies from person to person.
Common Causes of Post Stroke Shoulder Pain
1. Shoulder Subluxation
After a stroke, weakness in the muscles that support the shoulder joint can sometimes allow the upper arm bone to sit lower than its usual position within the shoulder joint.
This is known as shoulder subluxation.
It does not occur in every stroke survivor and does not always cause pain, but it may be associated with discomfort and reduced arm function in some patients.
2. Muscle Weakness
Weakness around the shoulder can affect normal joint stability and movement.
A patient may have difficulty:
Lifting the arm
Reaching forward
Reaching sideways
Supporting the arm
Controlling movement
Appropriate rehabilitation can help address weakness and motor-control problems.
3. Spasticity
Some stroke survivors develop increased muscle tone or spasticity.
This can cause stiffness and abnormal positioning of the shoulder and arm.
If spasticity interferes with movement or causes pain, it may require specific medical and rehabilitation management.
4. Reduced Range of Motion
Keeping the affected arm relatively still for prolonged periods can contribute to stiffness.
A painful shoulder can then become even harder to move, creating a cycle:
Pain → Less movement → Stiffness → Reduced function → More difficulty using the arm
Early and appropriate rehabilitation can help address this cycle.
5. Rotator Cuff and Soft-Tissue Problems
The shoulder can also develop musculoskeletal problems unrelated to the stroke itself.
Changes in movement mechanics or overuse of the unaffected side may contribute to shoulder problems.
A clinical assessment can help identify whether the pain may involve muscles, tendons, joints, or neurological factors.
Symptoms of Shoulder Pain After Stroke
A stroke survivor may experience:
Shoulder aching
Sharp pain during movement
Pain while dressing
