Rotator Cuff Pain or a Tear? How to Tell the Difference

THE PHYSIO CREW · SHOULDER SERIES: PART 6 OF 9

Why a scan result is not the whole story, and the signs that are actually worth acting on

In the first five parts of this series we looked at instability, impingement and tendinopathy, the shoulder blade, the kinetic chain, and the staged process for getting back to sport. We're now extending the series into the specific shoulder problems we see most often in clinic, starting with the one people search for more than any other: the rotator cuff.

The question we hear constantly is "Have I torn it?" Sometimes the answer is yes. Often the more useful answer is that the tendon is overloaded rather than torn, and those two situations call for quite different plans.

What the Rotator Cuff Actually Does

The rotator cuff is four muscles, supraspinatus, infraspinatus, teres minor and subscapularis, whose tendons wrap around the ball of the shoulder. Their main job is to keep that ball centred in the socket while bigger muscles like the deltoid move the arm.

In Part 3 we described the shoulder blade as the platform the arm works from. The rotator cuff is what keeps the joint controlled on that platform. When either one struggles, the other usually ends up working harder than it should.

Pain Isn't the Same as a Tear

Most rotator cuff pain is a load problem. The tendon has been asked to do more than it was ready for, often after a jump in gym training, a new sport, overhead work or a busy stretch at work. That's the tendinopathy picture we covered in Part 2.

Tears are different. Some happen suddenly with an injury. Others develop gradually as tendons change with age. Imaging commonly finds rotator cuff changes, including partial tears, in people who have no shoulder pain at all, particularly after 50. So a scan result on its own doesn't always explain why your shoulder hurts.

Signs That Point More Towards a Tear

Sudden pain and weakness after a fall onto an outstretched arm or a heavy lift

Difficulty lifting the arm out to the side or overhead, even once pain is controlled

Weakness rotating the arm outwards, like reaching back for a seatbelt

Night pain, especially lying on the affected side, that isn't settling

A shoulder that's getting weaker over a few weeks rather than better

How We Assess It

Assessment starts with how your symptoms began, then moves through movement testing, strength testing in different positions, and checks of the neck and shoulder blade. Where a number helps, dynamometry measures rotation strength on each side, so we're comparing against your other arm rather than guessing.

If a significant tear is suspected, particularly after a recent injury with clear weakness, we'll recommend imaging and refer you to your GP or an orthopaedic surgeon for an opinion. If surgery does go ahead, Part 9 of this series covers what rehab looks like afterwards.

What Treatment Usually Involves

Adjusting gym, sport or work load so the tendon isn't repeatedly overloaded

Progressive strengthening of the rotator cuff, shoulder blade and the wider kinetic chain from Part 4

Hands-on treatment and dry needling where clinically appropriate

Referral for a surgical opinion where a tear is significant, recent and causing marked weakness

When Not to Wait

Seek prompt medical care if you can't lift your arm at all after an injury, the shoulder looks deformed, the joint is hot, red and swollen or you have a fever. If shoulder or arm pain comes with chest pain, breathlessness or sweating, call 000.

A Few Things Worth Unlearning

"If the scan shows a tear, that's definitely what's causing my pain."

Rotator cuff changes are common in people without pain. Your symptoms, strength and history matter as much as the image.

"A tear always needs surgery."

Many people with rotator cuff tears, particularly gradual ones, manage well with a structured exercise plan. Surgery is one option, considered case by case.

"Rest it until it stops hurting."

Extended rest tends to reduce tendon capacity. Most rotator cuff problems respond better to the right load than to no load.

A Quick Self-Check (Not a Diagnosis)

Did your pain start suddenly with a fall or a heavy lift, rather than gradually?

Is lifting your arm out to the side weak, not just painful?

Is night pain getting worse rather than better?

Has the shoulder lost strength over the past few weeks?

If you answered yes to a couple of these, it's worth having your shoulder properly assessed rather than waiting it out.

Not sure if it's overload or a tear?

Book a shoulder assessment at our Keilor Downs, Tullamarine or Carlton clinic and get a clear answer and a plan that matches it.

thephysiocrew.com.au/book

Frequently Asked Questions

What are the signs of a torn rotator cuff?

Common signs include sudden weakness after a fall or heavy lift, difficulty lifting the arm out to the side or overhead, weakness rotating the arm outwards and night pain that doesn't settle.

Can a rotator cuff tear heal without surgery?

Many people with rotator cuff tears, particularly gradual tears, manage well with a structured exercise program. Surgery may be considered for significant tears after injury with marked weakness. The right path depends on your assessment.

Is rotator cuff pain the same as a tear?

No. Most rotator cuff pain comes from overloaded tendons rather than a tear. An assessment helps work out which is more likely.

Do I need a scan for rotator cuff pain?

Not always. Imaging often shows rotator cuff changes in people without pain, so scans are most useful when a significant tear is suspected or symptoms aren't improving with treatment.

Do I need a referral to book a shoulder assessment?

No referral is required. You can book directly at any of our clinics.