Introduction
Shoulder care · Instability
Shoulder dislocation
Dr Sean LeoOrthopaedic Surgeon, Singapore
Clinic enquiries · Not an emergency service
Illustrative image
A dislocated shoulder must be put back by a clinician.
A dislocated shoulder must be put back by a clinician.
A dislocated shoulder must be put back by a clinician.
- A dislocated shoulder is when the upper arm bone comes out of place from the shoulder socket.[2] It needs treatment in hospital, and it is not something to treat yourself.[2]
- Once a shoulder has dislocated, there is a higher chance that it could happen again.[2] That is why a first dislocation is followed by rehabilitation and an honest conversation about the risk of it repeating, rather than by being put back and forgotten.[1][2]
- Most first dislocations with little damage are treated without surgery. Surgery is considered in particular situations, and it is never an automatic next step.[1]
- OrthoKinetics is Dr Sean Leo’s professional brand. Clinical consultations and treatment are provided through OrthoSports Orthopaedic & Sports Surgery. Dr Sean Leo is a specialist orthopaedic surgeon who cares for shoulder problems.
What’s covered on this webpage
Follow the route in order, or jump to the stop you need. Stops you have read are marked.
The shoulder is a ball-and-socket joint that trades stability for movement.
The shoulder is a ball-and-socket joint that trades stability for movement.
The shoulder is a ball-and-socket joint that trades stability for movement.
The shoulder joint is the most mobile joint in the body. It can turn in many directions, which lets you place your hand in many positions.[1] That same freedom makes the shoulder an easy joint to come out of the socket.[1]
The rounded head of the upper arm bone is the ball, and the shoulder blade holds the socket. A rim of cartilage, the labrum, runs around the edge of the socket. It acts like a bumper that helps hold the bones in the right position.[1]
It usually dislocates forward when the arm is raised and forced.
It usually dislocates forward when the arm is raised and forced.
It usually dislocates forward when the arm is raised and forced.
Most often the ball slides forward out of the socket. This happens when the shoulder dislocates while the arm is raised away from the body.[1] Less often it slides backward, which can happen when the arm is raised in front of the body, and the shoulder often dislocates backward after a seizure.[1]
Shoulder dislocation is one of the most common joint dislocations. In international data it is more common in men, with one peak in young men playing contact sport and another in older people who stumble or fall.[3] Which direction the shoulder has dislocated is a matter for the clinician to confirm, not something to work out for yourself.
Who is affected
These patterns come from studies in other countries, not from Singapore data, and they describe groups of people rather than you.[3][4] A dislocation after a fall or a blow in sport is a physical injury. It says nothing about how carefully you have looked after your shoulder.
It brings sudden pain, a changed shoulder shape and difficulty moving.
It brings sudden pain, a changed shoulder shape and difficulty moving.
It brings sudden pain, a changed shoulder shape and difficulty moving.
A complete dislocation, where the joint surfaces are completely separated, usually brings sudden pain, a shoulder that looks out of place, and difficulty moving the arm.[1][2]
A partial dislocation is different. The joint surfaces are only partly separated, and this is called a subluxation.[1] It can be harder to detect. The bones can move back into place on their own, the joint may look fairly normal, and the shoulder will usually move fairly well, although there may be pain.[1] A partial dislocation can keep happening over time if the ligaments never heal.[1]
No symptom on its own confirms a dislocation, and a shoulder that moves fairly well is not proof that nothing has happened. Assessment settles it. If stiffness is the main problem, the frozen shoulder (adhesive capsulitis) page covers it. If the pain is more of a pinching pain, see the shoulder impingement (bone spurs) page. For pain that is spread out and not clearly any of these, start with the shoulder pain page.
First time, or happening again?
First time, or happening again?
First time, or happening again?
A shoulder that has dislocated once has a higher chance of dislocating again.[2] When a shoulder dislocates repeatedly, again and again, it leads to a condition called chronic shoulder instability.[1] Later episodes can happen even without an injury.[1]
How likely it is depends on your age and on how well the shoulder joint healed.[2] Studies report that the chance of a shoulder dislocating again is higher in younger, more active people, and that it becomes lower with increasing age.[3][4] Some people are also born with looser ligaments, and they are at greater risk of dislocating their shoulders.[1]
Those findings come from groups of people who were studied. They are not a prediction for you, and no figure on a webpage can tell you your own chance. That is why the plan after a first dislocation is worked out for the individual, and why it matters to bring up how active you are and what you want to return to.[1]
When should a suspected dislocation be assessed
When should a suspected dislocation be assessed
When should a suspected dislocation be assessed?
A shoulder dislocation should be considered an emergency injury.[1] A suspected dislocation needs a clinician to put it back, usually at a hospital emergency department, and you should not try to put it back yourself.[1][2] While waiting for treatment, keep your upper arm still.[2] Supporting the arm in a sling can help with pain until the shoulder is put back.[3]
If the shoulder has come out and then seems to have gone back by itself, it is still worth being assessed, because a partial dislocation can go back on its own and can keep recurring.[1] The signs that call for urgent help are listed under Final next step at the end of this page.
Safety note: This webpage is not an emergency service. No list on this page can rule out a serious problem remotely.
Assessment usually starts with an X-ray to confirm it.
Assessment usually starts with an X-ray to confirm it.
Assessment usually starts with an X-ray to confirm it.
You will usually have an X-ray to check that the shoulder is dislocated.[2] The examination also checks how the nerves and the circulation to the arm are doing, because a dislocation can affect them.[1][3]
Two injuries commonly come with a dislocation. In the first, the labrum, the cartilage rim around the socket, tears. This is called a Bankart lesion.[1][3] In the second, the ball of the upper arm bone is dented where it struck the rim of the socket. This is called a Hill-Sachs lesion.[3] Both are common, and both can affect how stable the shoulder is afterwards.[3][4]
The rotator cuff can be injured at the same time, and this becomes more common with age.[3] It is one reason the shoulder is assessed as a whole rather than only being put back. Rotator cuff tears have their own page: rotator cuff tear.
The shoulder is put back, rested in a sling, then rehabilitated.
The shoulder is put back, rested in a sling, then rehabilitated.
The shoulder is put back, rested in a sling, then rehabilitated.
Put back. If the X-ray shows a dislocation, a doctor rotates the arm back into place. You are given a local anaesthetic or a sedative so you do not feel any pain.[2] This is called a closed reduction, and it is done gently and slowly.[1] Severe pain usually stops almost immediately once the shoulder joint is back in place.[1] This is a step for a clinician. It is not something to try at home.[1][2]
Rested in a sling. Once the arm is back in place, you are given a sling to support it.[2] The sling keeps the shoulder still and protects it from further injury, and it is worn until you follow up with a physician.[1] You will need it for the first few weeks.[2] The exact position and how long you need it are for your treating team to set.
Rehabilitated. Physiotherapy helps restore the shoulder’s range of motion and strengthens the muscles.[1] It may also help prevent the shoulder dislocating again in the future.[1][2] Rehabilitation begins with gentle muscle toning exercises, and later weight training can be added.[1] The exercises themselves are set by your clinician or physiotherapist, and this page does not prescribe them.
When is stabilisation surgery considered
When is stabilisation surgery considered
When is stabilisation surgery considered?
If there is not much damage to the shoulder, a dislocation may be treated without surgery.[1]
Surgery may be needed if the shoulder cannot be put back into the socket, or if it has dislocated multiple times.[1] A dislocation often needs surgery when there are injuries to the muscles or bones that make up the shoulder.[1] Some people, particularly young athletes, may want surgery after a first dislocation to help prevent it happening again.[1] Surgery can also be needed to reduce the risk of dislocating the same shoulder again.[2]
Your surgeon will discuss and review your risk factors for it happening again, as well as the pros and cons of non-surgical treatment compared with surgery.[1] Surgery is a possibility to consider with your surgeon. It is not a recommendation made from a webpage.
Structure / Patient / Goal
Structure / Patient / Goal
Deciding together
Structure / Patient / Goal
S
Structure: what is affected?
Structure is what is affected: the direction the shoulder dislocated, whether the labrum or the bone was injured, and how the joint around it is doing.
P
Patient: how does it affect you?
Patient means you as a whole person. Your age, how active you are, how many times the shoulder has dislocated, your general health, your preferences and your circumstances all shape which options are reasonable.
G
Goal: what are you hoping to return to?
Goal is what matters to you, whether that is everyday tasks, work, or a contact or overhead sport. A useful plan starts from a clear purpose.
Your plan
No single factor decides treatment alone, and one scan or one symptom does not determine the plan.
Stabilisation surgery aims to lower the risk of the shoulder dislocating again.
Stabilisation surgery aims to lower the risk of the shoulder dislocating again.
Stabilisation surgery aims to lower the risk of the shoulder dislocating again.
Stabilisation surgery is done for one purpose: to reduce the risk of dislocating the same shoulder again.[2] It is discussed when the damage to the shoulder, or how often it has dislocated, makes repeated dislocation likely, as covered above.[1]
The injuries that come with a dislocation, such as the torn socket rim and the dent in the ball, are part of the picture your surgeon weighs.[3][4] How the operation is done for your shoulder is something your surgeon explains at consultation, once the assessment is complete.
After surgery it is possible to have some stiffness of the shoulder, and physiotherapy after surgery is very important to help restore range of motion.[1] Surgery aims to lower the risk of a repeat dislocation. It does not guarantee that the shoulder will never dislocate again.
Recovery is measured in weeks to months, not a fixed date.
Recovery is measured in weeks to months, not a fixed date.
Recovery
Recovery is measured in weeks to months, not a fixed date.
The NHS says it usually takes 6 to 12 weeks to recover from a dislocated shoulder. It may take up to 16 weeks to fully return to playing some sports, but for some people recovery can take longer.[2] These are ranges, not dates, and your own recovery depends on you and on the injury.
Recovery moves in steps. After the initial period in a sling, the sling is gradually left off, and the aim is to regain full movement and then to build strength gradually, with a focus on the muscles that steady the shoulder.[4]
Some people are able to return to full activity after a shoulder dislocation. Other people continue to have a feeling that the shoulder is sliding out of place, even after physiotherapy.[1] Neither of these outcomes is a personal failing. Return to sport is individual, and it is decided with your treating clinician rather than by a calendar.[1][2]
Risks and complications
Risks and complications
Risks and complications
Dislocating again. A shoulder that has dislocated once has a higher chance of dislocating again, and repeated dislocation leads to chronic shoulder instability.[1][2] A partial dislocation can also keep happening over time if the ligaments never heal.[1]
Nerve and blood-vessel injury. A dislocation can injure nerves or blood vessels, particularly in a severe dislocation.[1] This is a possible complication, not a routine outcome. It is one reason the examination checks the nerves and the circulation to the arm, and the signs that call for urgent help are listed under Final next step.[1][3]
Stiffness after surgery. After surgery it is possible to have some stiffness of the shoulder, which physiotherapy works to restore.[1]
Neither the non-surgical path nor surgery comes with a guarantee. Your clinician can go through the risks that apply to your shoulder and your health.
OrthoKinetics Recovery Reflection
Recovery reflection
If the shoulder left its socket in a moment, why does the return to it take such quiet weeks?
A dislocation is sudden and dramatic, and the days after it can feel strangely flat by comparison. The weeks that follow are mostly unremarkable ones: the sling, the follow-up, the gentle movements, the slow return of strength. It is easy to feel that so little is happening, but that unremarkable stretch is where the recovery is done.[1][2]
What might it be like to let a shoulder that surprised you earn your confidence back gradually?
A shoulder that gave way once can leave you watching it, guarding it, and wondering when it might happen again. Some people keep a feeling that the shoulder might slide out, even after physiotherapy.[1] That feeling is worth mentioning to your clinician. Confidence in the joint may come back in the same unhurried way that it left, through guided rehabilitation and by giving the shoulder time.
A dislocation is over in a moment, and the return from it is quiet. The shoulder that surprised you does not need to be hurried, and being patient with it is a fair part of the work.
Illustrative image
With you through the seasonsMeet Dr Sean Leo
Meet Dr Sean Leo
A consultant orthopaedic surgeon whose clinical focus is the knee, sports injuries and the lower limb.
- Dr Sean Leo is a consultant orthopaedic surgeon. OrthoKinetics is his professional brand; clinical services are provided through OrthoSports Orthopaedic & Sports Surgery at Mount Elizabeth Novena Specialist Centre and Connexion, Farrer Park Hospital.
- His clinical interests include sports injuries, including those in adolescent athletes; ligament reconstruction; realignment surgery; cartilage repair and joint-preservation approaches; knee replacement; and technology-assisted hip and knee surgery.
- The consistent aim is to return people to meaningful function and activity while avoiding unnecessary downtime.
- Qualifications: MBBS, MRCS (Ed), MMed (Ortho), FRCSEd (Ortho).
More detail: Meet Dr Sean Leo
- Training and career: Dr Leo trained in medicine at the National University of Singapore and served in the Singapore Armed Forces Medical Corps from 2000 to 2012, where his work included the care of soldiers in physically demanding roles. He completed postgraduate orthopaedic training in 2009 and a one-year clinical fellowship at Royal North Shore Hospital in Sydney, Australia, before joining Changi General Hospital as an orthopaedic consultant in 2012, where he later held the positions of Senior Consultant and Director of the Hip and Knee Service. With seniority, his educational contribution has evolved towards mentorship and support for junior doctors.
Questions people often ask
Common dislocated shoulder questions
Common dislocated shoulder questions
What is a dislocated shoulder?
A dislocated shoulder is when the upper arm bone comes out of place from the shoulder socket. It needs treatment in hospital, and it is not something to treat yourself. The shoulder is the most mobile joint in the body, and that freedom of movement is also what makes it easy to dislocate.[1][2]
How do I know if I dislocated my shoulder?
Sudden pain, a shoulder that looks out of place and difficulty moving the arm are typical of a complete dislocation. A partial dislocation can be milder and the joint may look fairly normal. Symptoms alone do not confirm it, so an assessment, usually with an X-ray, is how it is confirmed.[1][2]
Can a dislocated shoulder pop back in on its own?
A partial dislocation, called a subluxation, can move back into place on its own, and it can keep happening if the ligaments never heal. A complete dislocation needs a clinician to put it back, and you should not try to do it yourself. Either way, it is worth being assessed.[1][2]
How is a dislocated shoulder put back in?
A clinician does it. You will usually have an X-ray first, and then a doctor rotates the arm back into place, with a local anaesthetic or a sedative so you do not feel any pain. It is done gently and slowly, and it is not something to try at home. A sling supports the arm afterwards.[1][2]
Will my shoulder dislocate again?
A shoulder that has dislocated once has a higher chance of dislocating again, and it depends on your age and how well the joint healed. Studies report that the chance is higher in younger, more active people and lower with increasing age. It cannot be predicted for one person from a webpage.[2][3][4]
Do I need surgery after a first shoulder dislocation?
Not automatically. If there is not much damage, a dislocation may be treated without surgery. Surgery may be needed if the shoulder cannot be put back, has dislocated multiple times, or has injuries to the muscles or bones. Some young athletes may want it after a first dislocation. Your surgeon reviews the pros and cons with you.[1]
How long does a dislocated shoulder take to heal?
The NHS says it usually takes 6 to 12 weeks to recover, and it may take up to 16 weeks to fully return to playing some sports, but for some people it can take longer. These are ranges, not dates. Your recovery depends on you and on the injury, and your clinician guides you.[2]
What is the difference between a dislocated shoulder and a separated shoulder?
A dislocated shoulder is the upper arm bone coming out of the socket. Whether a painful shoulder after a fall or a blow is that, or a different injury, cannot be told from a webpage. An assessment, usually starting with an X-ray, settles what has happened, and a clinician can explain it for your shoulder.[1][2]
What is the difference between a dislocated shoulder and a rotator cuff tear?
A dislocation is the upper arm bone coming out of the socket. A rotator cuff tear is a different problem with its own page. The two can happen together, because the rotator cuff can be injured at the same time as a dislocation, and this becomes more common with age. See the rotator cuff tear page.[1][3]
Can I dislocate my shoulder again after stabilisation surgery?
Stabilisation surgery aims to lower the risk of dislocating the same shoulder again, but it cannot promise that the shoulder never will. Physiotherapy after surgery remains very important. What your own risk looks like is discussed with your surgeon at consultation.[1][2]
Costs and insurance
Costs and insurance
Practicalities
Cost, Medisave and insurance
Ask the clinic team for current information about fees, panel status, pre-authorisation and expected payment arrangements. Insurance coverage and out-of-pocket costs depend on the individual policy and the insurer’s decision; no coverage is guaranteed.
A cost estimate for surgery can be given only after a consultation and assessment, once a surgical plan has been developed. Each individual condition is unique — implants used, time taken, and other factors contribute to the overall estimate. The estimate will be provided to you by the clinic should you decide on surgical management, and will also be used to assist in obtaining pre-authorisation from insurance where applicable.
Insurance panels. Dr Sean Leo, Orthopaedic Surgeon, is on the specialist panels of Great Eastern (GE Panel), HSBC Life (HSBC Life Shield) and Singlife (Singlife Shield), and on the Prudential Panel. AXA Insurance Singapore became part of HSBC Life in 2023, and former AXA Shield plans are now HSBC Life Shield plans.
Corporate health plans. Dr Leo is on the panels of both Alliance Medinet and iXchange, which administer medical benefits for many company health plans. If your company plan uses either panel, you can see Dr Leo as a panel doctor.
If your company uses a different panel. Some company plans still let you see a doctor of your choice outside their panel, then claim reimbursement. This varies from plan to plan, as may the co-payment, so please check your benefits with your company’s HR department.
Panel arrangements change from time to time, so please confirm with your insurer or your company’s plan administrator before your appointment.
Dr Leo is on the panels shown. If your insurer is not listed, you may ask whether co-management with an Orthosports surgeon partner on that panel is clinically and administratively appropriate. Orthosports surgeon partners are collectively on the panels of all Shield plans.
Specific benefits, pre-authorisation, reimbursement and cashless treatment depend on the individual policy and insurer approval and are not guaranteed.
Arrange a consultation: the appointment section is further down this page.
Sources
References
References
- American Academy of Orthopaedic Surgeons. Shoulder Dislocation. OrthoInfo. Available at: https://www.orthoinfo.org/diseases–conditions/dislocated-shoulder
- NHS. Dislocated shoulder. Available at: https://www.nhs.uk/conditions/dislocated-shoulder/ (last reviewed 16 September 2026).
- Goth AP, Klug A, Gosheger G, Hiort ML, Akgün D, Schneider KN. Traumatic Anterior Shoulder Dislocation: Epidemiology, Diagnosis, and Treatment. Dtsch Arztebl Int. 2025;122(4):89-95. doi:10.3238/arztebl.m2024.0254. PMID 39836468. PMC12439206. Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC12439206/
- Varacallo MA, Musto MA, Mair SD. Anterior Shoulder Instability. [Updated 2023 Aug 4]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. NBK538234. Available at: https://www.ncbi.nlm.nih.gov/books/NBK538234/
Final next step
Final next step
Next step
Final next step
Reading about a problem is a starting point. An assessment brings together the history, an examination where needed and any useful tests, and helps you and your clinician decide what to do next. How much physical examination is needed is a matter of clinical judgement. It may be limited when pain makes an examination unreliable, or when imaging clearly shows a problem that matches the symptoms, such as a fracture seen on an X-ray or an MRI scan that clearly shows an injury consistent with the symptoms. The Singapore Medical Council and the UK General Medical Council both allow remote medical consultations, where a physical examination is not possible, with safeguards: the doctor must be clear about the limits of an opinion formed without an examination, and whether an in-person examination is needed, or referral to other services, is left to the clinical judgement of the attending doctor.
Signs that need urgent help
Some symptoms should not wait for a routine appointment. Each item below says where to go.
After an injury
- After a fall or other injury, the shoulder looks out of place or has changed shape, you cannot move your arm, or the shoulder is painful, bruised or swollen. Go to an emergency department or call 995.
- After an injury, the arm or hand is numb, tingling, cool to the touch, or has turned white or purple. Go to an emergency department or call 995.
- After a fall, you have intense pain, a snapping feeling and sudden weakness in your upper arm. Arrange a prompt assessment.
At any time
- A joint, such as the shoulder, is suddenly very painful, hot, red and swollen (redness may be harder to see on darker skin), especially with a fever or feeling generally unwell. Go to an emergency department or call 995.
- You have chest pain that feels tight or like squeezing, or chest pain that spreads to your arm, neck or jaw, or you have severe difficulty breathing. Go to an emergency department or call 995.
- Your shoulder symptoms come with fever, night sweats or weight loss. Arrange an urgent same-day assessment.
If you are admitted by the doctor at the urgent care centre of one of these private hospitals, the Parkway Pantai hospitals (Mount Elizabeth Orchard, Mount Elizabeth Novena, Gleneagles and Parkway East), Farrer Park Hospital and Thomson Medical Centre, you may ask for Dr Sean Leo to be your attending orthopaedic surgeon. If you are instead discharged and referred for orthopaedic follow-up, you may contact the clinic to arrange an appointment. Both are subject to the hospital’s admission processes and to Dr Leo’s availability.
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