What Is a Dislocated Shoulder?

It usually happens in a single bad moment: a fall onto an outstretched hand, a tackle that wrenches the arm back, a stumble that twists the shoulder further than it was built to go. A dislocated shoulder means the ball at the top of the upper arm bone has been forced out of the shallow socket it normally sits in. The shoulder is the body's most mobile joint — that freedom is exactly why it is also the large joint most often dislocated.

The short video at the top of this page, "Dislocated Shoulder" (about a minute, from the Mohamed Ibrahim channel), gets straight to the practical heart of the matter: two methods to reduce — put back — the shoulder are demonstrated, and the need for pain relief or anaesthesia is discussed. The steps below follow the same path a patient actually travels, from the pavement to the physiotherapy gym.

Step 1: Recognise what has happened

A dislocated shoulder is hard to mistake once you know the picture. The shoulder loses its normal rounded shape and can look squared-off or hollow under the skin. The arm is typically held still, often slightly away from the body, and trying to move it is very painful. There may be swelling, bruising later on, and sometimes numbness or tingling down the arm if nearby nerves are stretched. What you should not do is try to force the joint back yourself or let a well-meaning bystander yank on the arm — an associated fracture can be hiding in the same injury, which is part of why the next steps belong in a hospital.

Step 2: Protect the arm and get to hospital

Keep the arm in whatever position is least painful, support it — a sling, a cushion, or simply cradling it against the body — and head for emergency care. Don't eat or drink on the way if you can avoid it, in case sedation is needed later. This is not an injury to sleep on: the sooner the joint is assessed and put back, the easier that tends to be, because muscle spasm builds the longer the ball sits out of the socket.

Step 3: Assessment and an X-ray in the emergency department

In the department, the team will examine the shoulder and arm, checking movement, feeling and pulses, and ask how the injury happened. An X-ray is the standard next move, to confirm the direction of the dislocation and to look for a fracture travelling with it — a break changes the plan, as the injuries covered in our guide to how broken bones are treated show. Pain relief is given early; a dislocated shoulder hurts, and relaxing the surrounding muscle also makes the joint easier to restore.

Step 4: Putting the joint back — reduction

Reduction means guiding the ball back into the socket, and it is a skilled hands-on manoeuvre, not a single yank. Several named techniques exist, using combinations of gentle traction, rotation and leverage; the anchor video demonstrates two of them and discusses when pain relief alone is enough and when anaesthesia or sedation is the kinder and safer choice. If you'd like to see one named method up close, "Kocher's method of relocating a dislocated shoulder" (about a minute and a half) demonstrates that classic technique on its own. After a successful reduction, the relief is often dramatic, and a repeat X-ray confirms the joint is seated and checks again for fracture. A small number of dislocations can't be reduced this way, or come with a fracture that needs an operation — that's when the orthopaedic surgeons take over.

Step 5: Sling, rest, and the first days

Expect to leave with the arm in a sling for a period your team specifies, with advice on pain relief, ice, and which movements to avoid while the stretched tissues around the joint settle. The structures that were injured include the capsule and ligaments holding the ball in place, and, in some shoulders, the ring of cartilage around the socket — damage there is one reason a shoulder that has dislocated once can do so again, particularly in younger, active people.

Step 6: Rebuilding strength and deciding about surgery

Physiotherapy is where the long-term result is made. The early goal is gentle movement so the joint doesn't stiffen; then the work shifts to strengthening the rotator cuff and the muscles that centre the ball in its socket — the same muscle group at the centre of our guide to rotator cuff tears and their repair. If the shoulder dislocates repeatedly, or scans show damage that makes recurrence likely, your specialist may discuss stabilising surgery. That decision is individual — it depends on your age, your sport or work, and what the examination and imaging show — and it's a conversation for follow-up clinic, not for the night of the injury.

References & further reading

• MedlinePlus — Dislocated shoulder: https://medlineplus.gov/dislocatedshoulder.html
• NHS — Dislocated shoulder: https://www.nhs.uk/conditions/dislocated-shoulder/
• AAOS OrthoInfo — Dislocated Shoulder: https://orthoinfo.aaos.org/en/diseases--conditions/dislocated-shoulder/

Frequently Asked Questions

Can I put a dislocated shoulder back in myself?

Please don't try. A fracture can accompany the dislocation, and forcing the joint without an X-ray, proper pain relief and a trained technique can injure nerves, blood vessels or the joint itself. Support the arm and get to emergency care instead.

How long does recovery from a dislocated shoulder take?

It varies with the damage done and your age and activity. The sling phase is usually measured in weeks, and physiotherapy to restore movement and strength continues beyond that. Your own team will set the timetable after examining you and seeing your X-rays.

Will it happen again?

It can. A first dislocation stretches or tears the tissues that keep the ball centred, so recurrence is a real risk — highest in young, active people. Completing rehabilitation lowers the risk, and if it keeps happening, a specialist can discuss stabilising surgery.

When is a shoulder injury an emergency?

Treat a shoulder that looks deformed after an injury, an arm you cannot move, or numbness, tingling, or a pale or cool hand as an emergency the same hour. Those signs mean the joint, nerves or blood supply may be involved and need prompt assessment.

MedicalVideos.com has published trusted medical videos since 2007. The site was founded by Dr. Mohamed Ibrahim, MD, PhD — physician-scientist.

Educational only — this article is general information about a dislocated shoulder, not medical advice and not a diagnosis. Decisions about reduction, imaging and treatment for a shoulder injury belong with your own emergency and orthopaedic team, who can examine you.