Common Conditions Explained: Why Does My Shoulder Hurt When I Reach Overhead?

Shoulder pain when reaching overhead is common - but the source of the pain is not always as simple as it seems. From the rotator cuff and bursa to the neck itself, understanding what is contributing to your symptoms is the first step towards finding the right path forward.

Does your shoulder hurt when you reach into a cupboard, hang out the washing or lift your arm overhead? The shoulder is a complex region, and pain can come from more than one source. We explain some of the common contributors to overhead shoulder pain - and why a thorough assessment matters.

In This Guide:

  • Why reaching overhead can hurt

  • The role of the rotator cuff

  • What shoulder bursitis actually means

  • When shoulder pain may be coming from the neck

  • Why assessment matters

  • Treatment and rehabilitation options

  • When shoulder pain should be investigated further

The Story Begins

You reach into the top cupboard for a glass.

Halfway up, your shoulder catches.

Maybe it is a sharp pain. Maybe it is an ache that becomes more noticeable the higher you lift your arm. You lower your arm, try again, and there it is.

Over the next few days, you begin noticing it everywhere.

Putting on a shirt. Hanging out the washing. Reaching into the back seat of the car. Lifting something onto a shelf. Sleeping on that side at night.

You might start wondering:

Have I torn something?

Is it bursitis?

Should I stop using my arm?

Do I need a scan?

The frustrating answer is that shoulder pain when reaching overhead can have several possible contributors - and different shoulder problems can produce surprisingly similar symptoms.

That is why understanding where it hurts is only part of the picture.

A good assessment also considers when it hurts, how it moves, what makes it better or worse, how strong the shoulder is, what activities you have recently been doing and whether another area - such as your neck - may be contributing.

Let’s look at some of the common reasons your shoulder may hurt when you reach overhead.

Why Can Reaching Overhead Cause Shoulder Pain?

The shoulder is designed to move.

Unlike the hip, which sits deeply within a strong bony socket, the shoulder sacrifices some stability to give us an enormous amount of movement. That allows us to reach, throw, lift, swim, work overhead and move our arms through a remarkable range.

But that movement requires coordination.

When you lift your arm overhead, movement occurs not only at the ball-and-socket joint of the shoulder. Your shoulder blade also moves across the rib cage, the collarbone contributes, and muscles around the shoulder and upper back work together to control the movement.

The rotator cuff helps centre and control the upper arm bone as the arm moves. The larger muscles around the shoulder generate force. The shoulder blade must rotate and move appropriately. The upper back needs enough mobility to allow the arm to reach comfortably overhead.

If one or more parts of this system become painful, irritated, weak or overloaded, reaching overhead may become uncomfortable.

Importantly, pain does not always mean that something is being damaged each time you move.

Pain can be influenced by many factors, including tissue sensitivity, recent changes in activity, strength, movement capacity, recovery and previous injury.

The goal of assessment is to work out what is most likely contributing to your shoulder pain.

1. Rotator Cuff-Related Shoulder Pain

The rotator cuff is a group of four muscles and their tendons that surround the shoulder joint.

Together, they help stabilise and control the shoulder as you move your arm.

The four rotator cuff muscles are:

  • Supraspinatus

  • Infraspinatus

  • Teres minor

  • Subscapularis

When people hear the words “rotator cuff injury,” they often immediately think of a torn tendon.

But rotator cuff problems exist across a broad spectrum.

This can include:

  • Rotator cuff tendinopathy

  • Irritation related to a sudden increase in load

  • Partial-thickness tears

  • Full-thickness tears

  • Age-related tendon changes

  • Traumatic injuries

One common presentation is pain around the outside or upper part of the shoulder, particularly when lifting the arm.

You may notice pain:

  • Reaching overhead

  • Lifting something away from your body

  • Putting on a jacket

  • Reaching behind your back

  • Lying on the affected side

  • Performing repeated lifting or upper-body exercise

Some people experience a painful arc, where the shoulder hurts through part of the movement but becomes less painful once the arm reaches higher.

Others notice weakness, fatigue or reduced confidence using the arm.

Does rotator cuff pain mean the tendon is damaged?

Not necessarily.

Changes within rotator cuff tendons become increasingly common as we age, and structural findings on imaging do not always match a person’s symptoms.

This is an important point.

A scan may identify a tendon change, but that does not automatically tell us:

  • Whether it is the main cause of your pain

  • How much pain you should experience

  • How well your shoulder can function

  • Whether surgery is required

This is why imaging is only one piece of the puzzle.

Your history, movement, strength, symptoms and functional capacity all matter.

For many people with rotator cuff-related shoulder pain, appropriately prescribed exercise and progressive rehabilitation form an important part of treatment.

The goal is not simply to “rest the tendon forever.”

It is to help the shoulder gradually become more capable of handling the demands you place upon it.

2. Shoulder Bursitis

Another common term people hear after experiencing shoulder pain is:

“You’ve got bursitis.”

A bursa is a small, fluid-filled structure that helps reduce friction between tissues.

Around the shoulder, the subacromial-subdeltoid bursa sits between structures that move repeatedly as the arm is elevated.

When the bursa becomes irritated or inflamed, movements such as reaching overhead may become painful.

Symptoms may include:

  • Pain lifting the arm

  • Pain around the outer shoulder or upper arm

  • Pain lying on the affected side

  • Pain with repeated overhead activity

  • Increased discomfort after a change in activity or workload

However, bursitis should not always be viewed as a completely separate problem.

The bursa, rotator cuff and surrounding structures work within the same region. In some people, symptoms may involve more than one structure.

This is one reason shoulder diagnoses can become confusing.

A scan might report:

  • Bursitis

  • Tendinopathy

  • A partial tendon tear

  • Degenerative changes

Sometimes several findings appear on the same report.

But the scan still needs to be interpreted alongside the person standing in front of us.

Why did the bursa become irritated?

That is often the more useful question.

Did you suddenly increase your training?

Spend a weekend painting a ceiling?

Start a new gym program?

Return to swimming after six months away?

Lift more than usual at work?

Have you gradually lost shoulder strength or movement capacity?

Simply knowing that a bursa is irritated does not always tell us why the problem developed or what needs to change to help prevent it from returning.

3. Could the Pain Be Coming From Your Neck?

Sometimes the shoulder hurts - but the shoulder is not the whole story.

The neck can refer pain into the:

  • Shoulder

  • Shoulder blade

  • Upper arm

  • Forearm

  • Hand

This can happen when structures in the cervical spine contribute to pain or when a nerve becomes irritated.

Neck-related pain can sometimes feel remarkably similar to a shoulder problem.

Clues that the neck may be contributing can include:

  • Neck pain or stiffness

  • Pain around the shoulder blade

  • Symptoms travelling further down the arm

  • Pins and needles

  • Numbness

  • Changes in symptoms when moving the neck

  • Weakness that does not appear to be explained by the shoulder alone

But there is another possibility.

The shoulder and the neck can both be contributing at the same time.

This is why an assessment of shoulder pain should not necessarily stop at the shoulder.

If someone has pain when reaching overhead, we may also want to understand:

  • How the neck moves

  • Whether neck movements reproduce the symptoms

  • Whether there are neurological symptoms

  • How the shoulder blade moves

  • Whether strength has changed

  • Whether symptoms extend below the elbow

The location of pain gives us useful information.

It does not always give us the full diagnosis.

Why Assessment Matters

Shoulder pain is not a diagnosis.

It is a symptom.

Two people can both walk into the clinic saying:

“My shoulder hurts when I lift my arm.”

But the reasons may be quite different.

One person may have gradually overloaded their shoulder after increasing their gym training.

Another may have sustained a traumatic rotator cuff injury after a fall.

Another may have significant stiffness developing through the shoulder joint.

Another may have symptoms referred from the neck.

Another may have a combination of several factors.

This is why treatment should begin with assessment.

A shoulder assessment may include:

  • Your history

  • When did the pain begin?

  • Was there an injury?

  • Has your activity recently changed?

  • What movements aggravate it?

  • Does it wake you at night?

  • Have you experienced weakness, numbness or pins and needles?

  • What are you trying to get back to doing?

Movement assessment

  • How far can you move the shoulder?

  • Is movement painful, stiff or both?

  • Does the shoulder blade move differently?

  • Is there a particular part of the movement that reproduces your symptoms?

Strength testing

  • The rotator cuff and surrounding shoulder muscles may be assessed in different positions.

  • Strength testing can help identify pain, weakness and differences between sides.

Neck assessment

  • The cervical spine may be assessed to determine whether it could be contributing to the symptoms.

Functional assessment

The most important movement is often the one that matters to you.

That might be:

  • Serving in tennis

  • Swimming

  • Lifting weights

  • Hanging out the washing

  • Working overhead

  • Picking up a child

  • Reaching into a cupboard

A useful assessment should connect the clinical findings back to the things you actually need and want to do.

Do I Need a Scan?

Sometimes.

But not every painful shoulder needs immediate imaging.

Scans can be extremely useful when they are clinically indicated. They may be appropriate after significant trauma, when a substantial tear or other pathology is suspected, when symptoms are not progressing as expected, or when the result is likely to change management.

However, imaging findings must be interpreted carefully.

Bodies change with age.

Tendons change.

Joints change.

A scan may identify structural changes that are not necessarily the main reason a person is experiencing pain.

This does not mean scans are unhelpful.

It means they are most useful when ordered for the right reason and interpreted within the broader clinical picture.

A scan should add useful information to the assessment - not replace it.

Treatment Options for Shoulder Pain

There is no single treatment that is right for every painful shoulder.

Treatment should reflect:

  • The likely diagnosis

  • How long the problem has been present

  • The severity of symptoms

  • Your current strength and movement

  • Your work, sport and lifestyle demands

  • Your goals

Depending on the individual, management may include several approaches.

1. Education and Activity Modification

This does not necessarily mean stopping everything.

In many cases, the goal is to find the right amount of activity while the shoulder settles and rebuilds capacity.

That may involve temporarily modifying:

  • Repeated overhead movements

  • Heavy lifting

  • Certain gym exercises

  • Training volume

  • Sleeping positions

  • Work tasks

The aim is often to reduce unnecessary aggravation without becoming completely inactive.

2. Hands-On Treatment

Depending on the assessment, hands-on treatment may be used to address pain, stiffness or movement restrictions around areas such as the:

  • Shoulder

  • Neck

  • Upper back

  • Rib cage

  • Surrounding muscles and joints

At Bay City Health, hands-on treatment is not viewed as the entire solution.

For many shoulder presentations, it may be one part of a broader plan designed to help someone move more comfortably and progress towards active rehabilitation.

3. Exercise Rehabilitation

For many common rotator cuff-related shoulder problems, exercise is a central part of rehabilitation.

This may include exercises targeting:

  • Rotator cuff strength

  • Shoulder blade control and strength

  • General shoulder capacity

  • Upper-back movement

  • Functional lifting

  • Gradual return to overhead activity

The exact exercise matters less than choosing something appropriate for the individual and progressing it over time.

Someone returning to gardening has different demands from a competitive swimmer.

A tradesperson working overhead has different demands from someone whose main goal is to comfortably reach into the kitchen cupboard.

Rehabilitation should reflect the life you are trying to return to.

4. Progressive Loading

One of the most important concepts in rehabilitation is capacity.

A shoulder may become painful when the demands placed upon it exceed what it is currently prepared to tolerate.

That does not necessarily mean the shoulder is fragile.

It may mean the gap between what the shoulder can currently handle and what you are asking it to do has become too large.

Progressive rehabilitation aims to close that gap.

Over time, exercises can become:

  • Heavier

  • More challenging

  • More specific

  • More similar to work, sport or everyday tasks

The goal is not simply to perform three exercises forever.

The goal is to build a shoulder that is better prepared for your life.

5. Medical Management When Appropriate

Some shoulder conditions may also benefit from medical management.

Depending on the individual situation, this may involve:

  • Medication

  • Further investigation

  • Injection

  • Specialist referral

  • Surgical opinion

These options are not automatically the first step - or the last step.

They are tools that may be appropriate in particular circumstances.

Good healthcare is not about forcing every shoulder through the same pathway.

It is about understanding the problem and choosing the most appropriate next step.

When Should Shoulder Pain Be Assessed?

Consider seeking assessment if:

  • Your shoulder pain is persistent or worsening

  • You have significant weakness

  • The pain began after a fall or traumatic injury

  • You cannot lift your arm normally

  • You have persistent numbness or pins and needles

  • Your symptoms travel down the arm

  • Pain is significantly affecting sleep

  • You are unsure whether the pain is coming from your shoulder or neck

  • The problem is preventing you from working, exercising or doing everyday activities

Severe pain following trauma, obvious deformity, sudden major weakness, or symptoms associated with significant neurological or systemic changes warrant prompt medical assessment.

The Bay City Health Takeaway

When your shoulder hurts every time you reach overhead, it is tempting to focus on one question:

“What structure is damaged?”

Sometimes that question is important.

But often, a better set of questions is:

  • What is contributing to the pain?

  • What can I still do?

  • What does my shoulder need to become more capable again?

A painful shoulder is not automatically a shoulder that should never be used.

For many people, the path forward involves understanding the problem, modifying what needs to be modified, restoring movement where necessary and gradually rebuilding strength and confidence.

At Bay City Health, we believe good rehabilitation should give you more than temporary relief.

It should help you understand your body, recognise what it needs and build the confidence to use it again.

Because the goal is not simply to get your arm above your head in the treatment room.

The goal is to reach, lift, work, train, swim, garden and live with greater confidence in what your shoulder can do.

References

  1. Desmeules F, Roy JS, Lafrance S, et al. Rotator Cuff Tendinopathy Diagnosis, Nonsurgical Medical Care, and Rehabilitation: A Clinical Practice Guideline. Journal of Orthopaedic & Sports Physical Therapy. 2025;55(4):235–274.

  2. Lafrance S, Charron M, Roy JS, et al. Diagnosing, Managing, and Supporting Return to Work of Adults With Rotator Cuff Disorders: A Clinical Practice Guideline. Journal of Orthopaedic & Sports Physical Therapy. 2022.

  3. Powell JK, Schram B, Hing W, Lewis J. Physiotherapists nearly always prescribe exercise for rotator cuff-related shoulder pain: a cross-sectional international survey of physiotherapists.Musculoskeletal Science and Practice. 2022.

  4. Edwards P, Ebert J, Joss B, et al. Exercise rehabilitation in the non-operative management of rotator cuff tears: a review of the literature. International Journal of Sports Physical Therapy. 2016;11(2):279–301.

  5. Rees JL, Craig R, Littlewood C, et al. Shoulder Pain Diagnosis, Treatment and Referral Guidelines for Primary, Community and Intermediate Care. Shoulder & Elbow. 2021;13(1):5–11.

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The Bay City Way: Why Treatment Alone Isn’t Enough