Shoulder Dislocation

shoulder dislocation apprehension test assessing shoulder instability

Clinical assessment helps identify instability and associated injury after a shoulder dislocation.

A shoulder dislocation occurs when the ball of the upper arm completely leaves the shoulder socket. It usually causes sudden pain, loss of movement and sometimes a visible change in shoulder shape. A dislocated shoulder needs prompt medical assessment.

A subluxation is a partial dislocation. The joint shifts partly out of position and then returns. Both injuries can stretch or damage the tissues that stabilise the shoulder, leaving it painful, weak or unsafe during reaching, lifting, overhead movement or sport.

Shoulder dislocation physiotherapy may help restore movement, strength, stability and confidence after the joint has been reduced. If your shoulder repeatedly slips or gives way, our guides to shoulder pain conditions and shoulder instability explain the broader causes of ongoing symptoms.

Shoulder Dislocation: Quick Summary

A shoulder that looks out of place needs urgent medical assessment.
Do not try to force the shoulder back into position yourself.
X-rays commonly check joint position and associated fractures.
Rehabilitation usually progresses through movement, control, strength and activity-specific loading.
Younger collision-sport athletes generally have a higher risk of recurrence.
Adults over 40 may need assessment for an associated rotator cuff injury.

For general early-stage injury guidance, see acute soft tissue injury management. Once the shoulder is safe to move, your clinician may introduce graded shoulder exercises.

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What Is a Shoulder Dislocation?

A shoulder dislocation occurs when the humeral head completely leaves the glenoid socket. The shoulder has a large range of movement but relies heavily on its capsule, ligaments, labrum, rotator cuff and shoulder blade muscles for stability.

A traumatic dislocation can stretch or tear these stabilising tissues. It may also injure nearby bone, cartilage, tendons, nerves or blood vessels. A trained health professional should assess the joint, reduce it when required and check circulation and nerve function.

What Is the Difference Between Dislocation and Subluxation?

A dislocation involves complete loss of contact between the humeral head and the socket. A subluxation is a partial shift in which the joint slips partly out and then returns, either spontaneously or with movement.

A subluxation may look less dramatic, but it can still stretch the capsule or labrum and lead to pain, apprehension or repeated instability.

What Causes a Dislocated Shoulder?

Most shoulder dislocations follow trauma. Common mechanisms include a fall, tackle, collision, awkward landing or forceful overhead movement. In an anterior dislocation, the arm is often forced backwards while it is lifted away from the body.

Some people have additional risk factors, including previous dislocation, joint laxity, reduced shoulder control or repeated overhead loading. Sports such as rugby, martial arts, swimming, cricket, volleyball and throwing sports can place the shoulder in vulnerable positions.

When labral damage is suspected, our shoulder labrum injury guide provides more detail.

What Are the Types of Shoulder Dislocation?

Anterior Shoulder Dislocation

Anterior shoulder dislocation is the most common type. The humeral head moves forwards out of the socket. It often occurs when the arm is forced backwards and out to the side during a fall, tackle, collision or throwing action.

Posterior Shoulder Dislocation

Posterior shoulder dislocation is less common. It can occur after seizures, electric shock or high-force trauma that drives the humeral head backwards. It may be harder to identify on a routine examination or standard X-ray view.

Inferior Shoulder Dislocation

Inferior dislocation is rare. The humeral head moves below the socket, and the arm may become fixed overhead. This injury needs urgent assessment because nerve or blood vessel injury may occur.

What Is Multidirectional Shoulder Instability?

Multidirectional instability is not a separate direction of traumatic dislocation. Instead, the shoulder may feel loose or unstable in more than one direction. It can occur with generalised joint laxity, repetitive overhead activity or reduced muscular control.

Management usually focuses on progressive shoulder control, rotator cuff endurance and shoulder blade strength. Surgery is less commonly required unless symptoms remain limiting despite a thorough rehabilitation program.

What Are the Symptoms of Shoulder Dislocation?

A full shoulder dislocation usually causes sudden pain, loss of movement and an obvious change in shoulder contour. A subluxation may feel like the joint briefly shifts, slips or pops out and back in.

Sudden shoulder pain after trauma
Visible deformity or flattening of the shoulder contour
Inability or marked difficulty moving the arm
A popping-out or slipping sensation
Ongoing looseness, apprehension or giving way
Numbness, tingling or weakness in the arm or hand
Swelling, bruising or muscle spasm

When Should You Seek Urgent Care?

Seek urgent medical assessment if your shoulder looks out of place, you cannot move the arm, pain is severe or you notice changes in sensation, strength, colour or circulation.

A shoulder that looks visibly out of position
A cold, pale or blue hand
Marked arm or hand weakness
Worsening numbness or tingling
Severe or unrelenting pain
Major trauma or a suspected fracture

Do not try to force the shoulder back into place yourself. Support the arm in the most comfortable position available and avoid unnecessary movement while seeking medical care.

Avoid food or drink until assessed if sedation or a procedure may be required.

How Do Clinicians Diagnose a Shoulder Dislocation?

Diagnosis begins with the injury mechanism, symptoms and physical examination. The clinician checks shoulder position, skin colour, pulses, sensation and muscle function before and after reduction.

X-rays commonly confirm joint position and check for fractures. Additional imaging may be considered when symptoms persist, instability recurs or an associated tendon, labral, cartilage or bone injury is suspected.

X-ray: checks alignment and associated fractures.
MRI: may assess the labrum, capsule, rotator cuff and cartilage.
MRA: may provide more detail about selected labral injuries.
CT: may assess glenoid or humeral head bone loss before surgery.

For suspected fracture, see fractured humerus. Adults with ongoing weakness after dislocation may also require assessment for a rotator cuff tear.

What Injuries Can Occur With a Shoulder Dislocation?

A shoulder dislocation can affect more than the joint position. Associated injuries may influence recurrence risk, rehabilitation and whether a surgical opinion is appropriate.

Bankart Lesion

A Bankart lesion is an injury to the lower front part of the labrum and capsule. It commonly occurs with an anterior shoulder dislocation and can contribute to recurrent instability.

Hill-Sachs Lesion

A Hill-Sachs lesion is an impression injury on the humeral head. It occurs when the humeral head contacts the edge of the socket during dislocation. Its size and interaction with glenoid bone loss can influence future stability.

Rotator Cuff Injury

Rotator cuff tears are more common after dislocation in adults over 40. Persistent weakness, difficulty lifting the arm or limited recovery should prompt further assessment.

Nerve or Blood Vessel Injury

The axillary nerve is particularly vulnerable during shoulder dislocation. Temporary numbness over the outer shoulder or weakness may occur. Major vascular injury is uncommon but requires urgent care.

How Can Physiotherapy Help After Shoulder Dislocation?

Physiotherapy after shoulder dislocation uses staged rehabilitation to restore comfortable movement, muscular control, strength and confidence. The program should match the injury pattern, age, recurrence risk, treatment choice and demands of daily activity, work or sport.

Rehabilitation does not follow one fixed timeline. Progression depends on pain, movement, tissue injury, medical advice, imaging findings and whether the shoulder was treated surgically.

Stage 1: Protect and Settle

Early care focuses on protecting injured tissues, managing pain and swelling, maintaining comfortable movement and following sling or medical instructions.

Stage 2: Restore Movement

Exercises gradually restore shoulder range while limiting positions that create excessive strain, pain or apprehension.

Stage 3: Build Stability

Rehabilitation progresses rotator cuff strength, shoulder blade control, endurance and joint-position awareness.

Stage 4: Return to Activity

Work, gym and sport-specific drills rebuild speed, power, confidence and tolerance to overhead, contact or lifting demands.

Why Strengthening Matters

The rotator cuff and shoulder blade muscles help keep the humeral head centred during reaching, lifting, throwing and contact activity. Rehabilitation should progress from controlled low-load exercise to faster and more demanding tasks.

shoulder dislocation rehab external rotation exercise with resistance band

Progressive rotator cuff exercise helps rebuild shoulder control after dislocation.

External rotation exercises are commonly introduced once the shoulder is safe to load. Resistance, range, speed and position should progress according to symptoms and the demands of work, gym or sport.

How Does Age Affect Shoulder Dislocation Recovery?

Age influences recurrence and associated injury risk, but it does not determine the treatment plan by itself. Sport, occupation, previous instability, joint laxity, labral injury and bone loss also affect clinical decisions.

Age group	Common concern	Common clinical consideration
Under 25	Higher recurrence risk, particularly in collision or overhead sport	Structured stability rehabilitation and early recurrence-risk discussion
25 to 40	Balance between rehabilitation potential and work or sport demands	Progressive rehabilitation with review if instability persists
Over 40	Higher risk of associated rotator cuff injury	Early strength assessment and further imaging when recovery is limited

Can a Shoulder Dislocation Happen Again?

Yes. Recurrent instability is more common in younger people and those returning to collision or high-demand overhead sport. Risk also increases with previous episodes, persistent apprehension, generalised laxity, labral injury and meaningful bone loss.

A rehabilitation program may improve shoulder control and reduce modifiable risk. However, exercise cannot reverse every structural injury. Some people benefit from an orthopaedic opinion, especially when the shoulder repeatedly dislocates or remains unreliable.

Who May Respond Well to Non-Surgical Treatment?

Many people recover well with structured physiotherapy, particularly after a first-time dislocation when recurrence risk is lower.

Non-surgical management may be more suitable when the person:

Has experienced a first-time dislocation
Does not participate in collision or high-risk overhead sport
Has no major glenoid or humeral head bone loss
Regains stable day-to-day function as rehabilitation progresses
Has reducing apprehension and improving confidence
Can complete a progressive strength and control program

When May a Surgical Opinion Be Helpful?

A surgical opinion may be considered when repeat instability risk is high or when the shoulder remains unreliable despite appropriate rehabilitation.

Repeat dislocations or subluxations
Persistent giving way during work, daily tasks or sport
High-demand collision or overhead sport
Significant labral injury or bone loss
Ongoing apprehension in required shoulder positions
Heavy lifting or overhead occupational demands
Failure to regain dependable function with rehabilitation

Can Risk Scores Guide Treatment?

Clinical risk scores may support shared decision-making by combining factors such as age, activity demands, injury pattern and imaging findings. They estimate risk rather than providing a definite answer.

Your treatment decision should still account for your goals, symptoms, confidence, sport, work demands and preferences.

What Is Shoulder Stabilisation Surgery?

Shoulder stabilisation surgery aims to improve joint stability after recurrent dislocation or significant structural injury. Common procedures repair or tighten the labrum and capsule. Additional procedures may address glenoid or humeral head bone loss.

The recommended procedure depends on the direction of instability, number of episodes, labral damage, bone loss, age and activity demands.

What Happens During Rehabilitation After Stabilisation Surgery?

Postoperative rehabilitation begins with protection of the surgical repair. Sling use and movement restrictions depend on the procedure and surgeon’s protocol.

Rehabilitation then progresses through:

Protected movement and symptom control
Gradual restoration of shoulder range
Rotator cuff and shoulder blade strengthening
Progressive lifting and overhead control
Work, gym and sport-specific loading
Contact preparation when relevant

Read more about post-operative rehabilitation.

When Can You Return to Sport After Shoulder Dislocation?

Return to sport should depend on function rather than time alone. Contact sport, throwing and high-speed overhead activity usually require a longer and more demanding progression than general exercise.

Common return-to-sport criteria include:

Near-full, comfortable shoulder movement
Adequate rotator cuff and shoulder blade strength
No meaningful apprehension in required positions
Good control during reaching, lifting and landing tasks
Tolerance of progressive training loads
Successful completion of sport-specific drills
Medical or surgical clearance where required

When Can You Return to Work?

Return-to-work timing depends on the role. Desk-based duties may resume earlier than heavy lifting, repetitive overhead work, climbing or manual handling.

A graded work plan may include temporary restrictions, modified duties and progressive exposure to lifting, carrying and overhead tasks. Your physiotherapist can communicate suitable capacity guidance when required.

Related Shoulder Information

shoulder dislocation recovery overhead movement showing stable shoulder function

Return to overhead activity should follow progressive strength, control and confidence testing.

Shoulder Dislocation FAQs

How long does a shoulder dislocation take to heal?

Healing time varies. Many people regain comfortable day-to-day movement within several weeks, while strength, control and confidence may take several months. Contact sport, overhead work and throwing usually require a longer staged rehabilitation program.

Do I need physiotherapy after a shoulder dislocation?

Physiotherapy commonly helps restore movement, rebuild rotator cuff and shoulder blade control, and guide a safe return to activity. The program should reflect your age, injury pattern, recurrence risk, imaging findings and work or sport demands.

What is the difference between a shoulder dislocation and subluxation?

A shoulder dislocation means the upper arm bone completely leaves the socket. A subluxation is a partial slip where the joint shifts partly out and then returns. Both injuries can stretch or damage the tissues that stabilise the shoulder.

Can a shoulder dislocation happen again?

Yes. Repeat instability is more common in younger people, collision-sport athletes and those with previous dislocations, labral damage or bone loss. Rehabilitation may reduce modifiable risk, but recurrent episodes may require a surgical opinion.

Should I wear a sling after a shoulder dislocation?

A sling may provide short-term comfort and protection, but the recommended duration varies. Prolonged immobilisation can increase stiffness. Follow the instructions provided by your emergency clinician, doctor, surgeon or physiotherapist.

Can I exercise after a shoulder dislocation?

Yes, but exercise should begin at an appropriate stage. Early exercises usually focus on comfortable movement and gentle muscle activation. Resistance, overhead loading, speed and contact should progress only when the shoulder is ready.

When can I return to sport after shoulder stabilisation surgery?

Return-to-sport timing varies by procedure and sport. Many people need several months of progressive rehabilitation before contact or overhead competition. Clearance depends on movement, strength, control, symptoms, sport-specific testing and surgeon guidance.

What to Do Next

If your shoulder looks out of place after an injury, seek urgent medical care and do not attempt to relocate it yourself.

After reduction, or if your shoulder remains painful, weak, apprehensive or unstable, a physiotherapy assessment may help identify your current limitations and guide a safe rehabilitation plan.

Your rehabilitation should match your injury. Age, recurrence risk, associated tissue damage, work demands, sport and confidence all influence the safest next step.