Shoulder Pain After a Fall: What Could Be Injured

A fall onto the shoulder or an outstretched hand can leave you with pain that does not settle and an arm that will not do what you ask of it. In adults between 40 and 70, three injuries account for most of these presentations: a rotator cuff tear, a fracture of the top of the upper arm bone, or a shoulder dislocation. Each feels different and each has a clear path forward.

Key Takeaways

• The three most likely shoulder injuries after a fall in adults over 40 are a rotator cuff tear, a proximal humerus fracture and a dislocation.
• Heavy swelling and bruising tracking down the arm points towards a fracture; a change in shape with the arm held away from the body suggests a dislocation.
• A normal X-ray does not rule out a rotator cuff tear. Weakness lifting the arm two weeks after a fall needs an ultrasound or MRI.
• Most fractures and many cuff tears can be managed without surgery; traumatic cuff tears are assessed early because timing can affect repair options.
• At MTP Health, Dr Mun Khin Chan assesses the injury and the MTP physiotherapy and exercise physiology team guides recovery, with or without surgery.

Why a Fall Injures the Shoulder

The shoulder joint trades stability for movement. It is where three bones, the upper arm bone and the shoulder blade meet, held by the rotator cuff tendons and the ligaments holding the joint together. A shallow, rounded socket, a large ball and a cuff of four tendons give you the range to reach overhead, but little bony support when a sudden load arrives. This is why common shoulder injuries cluster after a fall.

Which structure fails depends partly on age. In younger adults the ball tends to slip out of the shoulder socket, and repeated events lead to shoulder instability. From the forties onward the cuff tendons are more likely to tear. Beyond 60, particularly where bone density is lower, the top of the humerus fits less securely and is often the weakest link, so a broken bone becomes more likely than a torn tendon.

Being seen early at an orthopaedic and physiotherapy clinic on Sydney’s North Shore means the pattern of injury can be worked out before stiffness, weakness or a poorly positioned bone make recovery harder.

Rotator Cuff Tear After a Fall

A traumatic cuff tear is the injury most often missed, and rotator cuff injuries are among the most common injuries in this group. The shoulder may not look swollen, the X-ray in the emergency department is usually normal, and a diagnosis of sprain seems reasonable.

The clue is function. Difficulty raising the arm away from the body, or needing the other hand to help it up, points to a torn rotator cuff that is no longer attached. Related problems around the same area, such as a SLAP tear or a labral tear where the cuff and biceps tendon anchor, and irritation of the acromioclavicular joint at the tip of the shoulder blade, can produce similar pain.

Timing matters more for a tear caused by a fall than for one that has developed slowly. A torn tendon can retract and its muscle can weaken, which may narrow surgical options later, so Dr Chan assesses traumatic tears early. Smaller or partial tears often do well with a structured physiotherapy programme.

Larger full-thickness tears in active people may be offered rotator cuff repair, with the MTP team guiding rehabilitation for several months afterwards. Both paths are discussed, including the risk factors, the risks of surgery and the risk of the tear enlarging without it.

Proximal Humerus Fracture

A break through the top of the upper arm bone is the most common shoulder fracture after a fall in older adults, and it usually announces itself: severe pain, sudden very bad pain when you try to move your arm, rapid swelling, and bruising that appears over the following days and tracks down the upper arm. Movement is very limited, the shoulder can look badly swollen, and most people hold the arm against the body with the neck forward to guard it.

An X-ray confirms the fracture and shows whether the fragments have stayed in position. Around four in five are minimally displaced and heal in a sling over roughly six weeks, with early guided movement of the elbow, wrist and hand, then the shoulder, so stiffness does not become the lasting problem. The MTP physiotherapy team manages this phase and progresses loading as the bone unites.

Where fragments are significantly displaced, Dr Chan may discuss fixation with a plate and screws or, in some cases, a shoulder replacement. Surgery carries its own risks, so the decision weighs bone quality, activity level and general health against the likely result of non-surgical care.

Shoulder Dislocation After a Fall

A dislocation, a broken or dislocated bone pushed out of the joint, is usually obvious. The shoulder loses its rounded shape, a bump appears at the front, the arm is held slightly away from the body and any movement is intensely painful.

This dislocated bone needs an emergency department the same day so the joint can be put back under sedation and checked with an X-ray. Once it is back in place, whether a dislocation needs surgery depends on age, activity and what imaging shows.

In people over 40, a dislocation is more likely to tear the rotator cuff than to loosen the ligaments at the front of the socket, so persistent weakness after the shoulder is back in place should prompt further imaging. Recurrent instability is less common in this age group, but where it occurs, shoulder stabilisation surgery can be an option alongside a strengthening programme.

Sorting Out Which One It Is

The three injuries overlap, and a careful examination is more useful than any single sign. Dr Chan will ask how you landed, what you could do straight afterwards and how the arm or shoulder has behaved since, then look at shape, swelling and bruising, test each cuff tendon and check the nerves and blood supply of the arm.

X-ray comes first, because a fracture or a dislocation that has not fully reduced changes everything. If the X-ray is clear but you still cannot lift the arm, imaging tests such as an ultrasound or MRI are the next step. A normal X-ray with poor function is a reason to look further, not a reason to wait.

The First Few Weeks

Whatever the injury, the early priorities are the same: support the arm in a sling, manage pain so you can sleep, keep the hand, wrist and elbow moving, and avoid repeatedly testing the shoulder to see if it has improved.

Simple self-care helps: heat or cold packs to reduce swelling, applying cold packs or a bag of frozen peas wrapped in a tea towel to the shoulder for short spells, and over-the-counter anti inflammatory medications, with stronger medicine from your doctor reserved for severe cases.

Australian government advice on shoulder pain, including its non urgent advice on when to seek medical help, covers simple pain relief for this phase and how to ease shoulder pain at home.

From there, the treatment plan becomes specific and the physiotherapy takes over. A fracture in a good position is progressed on a bone-healing timeline. A cuff tear is rehabilitated or repaired. A dislocation is strengthened and monitored.

Physiotherapy sessions build range of motion first, then add gentle shoulder exercises and gradually your own strenuous exercises as the tissue allows, so you can stay active and ease pain without flaring it. Early on, avoid lifting any heavy object and do not push through sharp pain.

In each case the MTP physiotherapy and exercise physiology team works alongside Dr Chan, so that prehabilitation before any surgery and rehabilitation afterwards are one plan. Most people improve over the first six weeks and keep gaining strength and range for up to a year. Even when the sessions end, keeping the exercises going helps stop pain returning; stand tall, keep the shoulder moving, and do not completely stop your physical activity once the pain settles.

Frequently Asked Questions (FAQs)

Can you tear your rotator cuff from a fall?

Yes. A fall onto the shoulder or an outstretched arm is a common cause of a traumatic rotator cuff tear in adults over 40. The main signs are weakness lifting or rotating the arm and a normal X-ray.

How do I know if my shoulder is broken or just bruised after a fall?

Severe pain, rapid swelling and bruising that spreads down the upper arm point towards a fracture. Bruising alone with reasonable movement is more likely to be soft tissue. An X-ray is the only reliable way to tell.

Why can’t I lift my arm after a fall if the X-ray was normal?

An X-ray shows bone, not tendon. Persistent weakness lifting the arm with a normal X-ray is the classic picture of a rotator cuff tear. An ultrasound or MRI can confirm it, and earlier assessment keeps more treatment options open.

Do I need to go to emergency for shoulder pain after a fall?

Go the same day if the shoulder looks out of shape, you cannot move the arm at all, the hand is numb or pale, or the pain is severe. If the shoulder is sore but moving and the shape is normal, seeing your GP or a shoulder specialist within a few days is reasonable.

How long does shoulder pain last after a fall?

A simple bruise or strain usually settles within two to three weeks. Pain and weakness that persist beyond that, or that stop you lifting the arm, suggest a cuff tear, fracture or unrecognised dislocation and should be assessed rather than waited out.

Conclusion

Shoulder pain after a fall is rarely just a bruise when the arm has stopped working properly. A rotator cuff tear, a proximal humerus fracture and a dislocation each need a different plan, and early assessment keeps more options open. If your shoulder is not recovering the way you expect, book an assessment with MTP Health on (02) 9437 9794 and let the team map out your next steps with you.