Dislocation of the Shoulder Joint
A dislocated shoulder occurs when the ball of the upper arm bone (humerus) slips out of the shoulder socket. This injury often happens during falls, sports injuries, or trauma to the shoulder. It can cause severe pain, swelling, and loss of shoulder movement. Physiotherapy at ACE Physio Sports plays a crucial role in rehabilitation, helping restore shoulder strength, mobility, and stability while reducing the risk of future dislocations.


What is a Dislocated Shoulder?
A dislocated shoulder occurs when the ball of the upper arm bone (humerus) slips out of the shoulder socket. This injury often happens during falls, sports injuries, or trauma to the shoulder. It can cause severe pain, swelling, and loss of shoulder movement. Physiotherapy at ACE Physio Sports plays a crucial role in rehabilitation, helping restore shoulder strength, mobility, and stability while reducing the risk of future dislocations.What is a Dislocated Shoulder?
A dislocated shoulder occurs when the head of the upper arm bone (humerus) moves out of its normal position in the shoulder socket (glenoid).
The shoulder joint is highly mobile, which allows a wide range of movement but also makes it more vulnerable to dislocation.
When the shoulder dislocates, the surrounding ligaments, muscles, and joint capsule can stretch or tear, leading to pain and instability in the joint.
Prompt medical treatment is required to return the joint to its correct position and prevent further damage.
How Does a Dislocated Shoulder Occur?
A shoulder dislocation typically happens when excessive force is applied to the shoulder joint.
This force can push the ball of the arm bone out of the socket.
Common causes include:
- Falling onto an outstretched hand
- Direct impact to the shoulder
- Sports injuries (such as rugby, football, or basketball)
- Sudden twisting or pulling movements
- Accidents or trauma
These forces may overcome the strength of the supporting muscles and ligaments, causing the joint to dislocate.
Symptoms of a Dislocated Shoulder
The most common symptom of a shoulder dislocation is sudden and severe shoulder pain.
Other symptoms may include:
- A visible deformity of the shoulder
- Reduced range of motion
- Swelling or inflammation around the joint
- Muscle weakness
- Muscle spasms
- Numbness or tingling in the arm or hand
- A popping sensation at the time of injury
People with a dislocated shoulder often hold their arm close to the body to reduce pain.
What Should I Do if I Have a Dislocated Shoulder?
A dislocated shoulder is a medical emergency and requires immediate treatment.
If you suspect your shoulder is dislocated:
- Seek medical attention immediately at the nearest accident and emergency department
- Avoid moving the injured arm
- Support the arm in a comfortable position
- Apply ice wrapped in a towel for up to 20 minutes to reduce swelling
A healthcare professional will perform a reduction procedure, where the shoulder joint is carefully moved back into its correct position.
Imaging tests such as X-rays may also be used to check for fractures or other injuries.
Physiotherapy After a Dislocated Shoulder
Physiotherapy plays a key role in recovery after the shoulder has been relocated.
At ACE Physio Sports, rehabilitation focuses on restoring shoulder movement, strength, and stability.
Treatment often begins with:
- Wearing a sling to support the shoulder during early healing
- Pain management techniques
- Gentle mobility exercises
As recovery progresses, physiotherapy may include:
- Strengthening exercises for the shoulder muscles
- Stability exercises to improve joint control
- Sports injury rehabilitation
- Manual therapy techniques such as mobilisation
- Massage to reduce muscle tension
A structured rehabilitation programme helps restore full function and reduces the risk of future dislocations.
What Should I Avoid After a Shoulder Dislocation?
If your shoulder is dislocated, you should not attempt to relocate the joint yourself.
Trying to force the shoulder back into place can cause serious damage to nerves, blood vessels, or surrounding tissues.
During the early stages of recovery, you should also avoid activities that increase blood flow and swelling around the injured area, including:
- Hot showers
- Heat rubs
- Alcohol consumption
- Massage directly after injury
These activities may increase inflammation and delay healing.
Long-Term Effects of a Dislocated Shoulder
Most people recover well after a shoulder dislocation with appropriate treatment and rehabilitation.
However, some individuals may experience long-term complications such as:
- Recurrent shoulder dislocations
- Shoulder instability
- Nerve injuries causing numbness or weakness
- Joint stiffness or reduced mobility
These risks are higher if the supporting tissues around the shoulder have been significantly damaged.
Early physiotherapy rehabilitation helps improve joint stability and reduces the risk of repeated dislocations.
Why Choose ACE Physio Sports?
At ACE Physio Sports, our physiotherapists specialise in treating shoulder injuries and sports-related conditions.
We provide:
- personalised physiotherapy rehabilitation programmes
- expert shoulder injury treatment
- sports injury rehabilitation
- guidance for safe return to activity
Our goal is to help you restore shoulder strength, mobility, and long-term joint stability.
Book an Appointment
If you have experienced a shoulder dislocation or shoulder injury, our physiotherapists can help support your recovery.
To arrange an appointment, please call +65 81535374 or visit acephysiosport.com.
Frequently Asked Questions
Why does my shoulder hurt when I lift my arm above my head?
Overhead pain is one of the most common shoulder complaints and can be caused by conditions like Dislocation of the Shoulder Joint. It often involves impingement of tendons or bursa in the subacromial space. Physiotherapy addresses the root cause through posture correction and progressive rotator cuff strengthening.
Can physiotherapy fix my shoulder problem without surgery?
Most shoulder conditions — including Dislocation of the Shoulder Joint — respond very well to physiotherapy. Treatment may include manual therapy, rotator cuff exercises, and scapular stabilisation. Surgery is considered only when conservative treatment has been given a full, consistent trial.
How long before I can sleep on my shoulder again?
Sleeping on the affected side is often the last comfort to return during shoulder rehabilitation. Most patients regain this within 4–8 weeks as pain and inflammation settle. A firmly placed pillow under the arm can help in the meantime.
Ready to start your recovery?
Our specialist physiotherapists are here to help. Book a consultation today.
Book an Appointment