Stop Ignoring That Shoulder Pain – It Could Be Bursitis

KEY TAKEAWAYS

• Shoulder bursitis is inflammation of the subacromial bursa, a fluid-filled cushion between the rotator cuff tendons and the bony tip of the shoulder. It usually develops alongside rotator cuff irritation, not in isolation.
• The classic pattern is pain on the outside or front of the shoulder that is worse with reaching, lifting, or sleeping on the affected side, and that often shows up at night.
• Most cases improve meaningfully within 6 to 12 weeks of structured care, but the pain comes back if only the inflammation is treated and the underlying loading and movement pattern is not addressed.
• A 2023 randomised trial found that physical therapy combined with shockwave therapy produced better mid-term outcomes than physical therapy combined with a corticosteroid injection. A 2025 meta-analysis found that shockwave therapy improves pain and function in shoulder impingement syndrome compared with control treatments in the 2 to 3 month window.
• Cortisone injections can take the edge off, but they do not change why the bursitis developed. Repeated injections into the same shoulder carry real risks.
• Severe pain after a fall, a sudden loss of strength, fever, or a hot swollen joint warrant a physician's evaluation, not a wait-and-see approach.

IN THIS ARTICLE

• What shoulder bursitis is, and why the pain often persists
• How to tell shoulder bursitis from other causes of shoulder pain
• What the research says about treatment
• How treatment works at Unpain Clinic
• What to realistically expect from a course of care
• What to do at home between visits
• When to see a physician
• FAQ

INTRODUCTION

Shoulder pain that has crept in over weeks or months is easy to dismiss. A twinge when reaching for a high shelf. A dull ache after a long day at the keyboard. Trouble sleeping on one side. The temptation is to push through it and hope it sorts itself out. The problem with that strategy is that one of the most common causes of this pattern, subacromial bursitis, rarely sorts itself out without a change in how the shoulder is being used. This article is about what shoulder bursitis actually is, why the pain so often becomes stubborn, and what modern conservative care actually looks like in 2026.

This is general education, not individual medical advice. If your shoulder pain came on suddenly after a fall, if you have a sudden loss of strength, fever, or a hot swollen joint, see a physician before doing rehabilitation work.

WHAT IS SHOULDER BURSITIS, AND WHY DOES THE PAIN OFTEN PERSIST?

A bursa is a small fluid-filled sac that sits between two tissues that move against each other, and its job is to reduce friction. The shoulder has several, but the one that most often becomes painful is the subacromial bursa, which sits between the rotator cuff tendons (the muscles that stabilise and rotate the upper arm) and the underside of the acromion (the bony roof of the shoulder).

Subacromial bursitis means that bursa has become inflamed and irritated. The classic signs, summarised well in the StatPearls chapter on subacromial bursitis by Faruqi and Rizvi 2023, are pain on the outside or front of the shoulder, worse with reaching or lifting the arm, often worse at night, and frequently accompanied by a painful arc between roughly 60 and 120 degrees of arm elevation. Tenderness when pressing just below the bony tip of the shoulder is common. Visible swelling and redness on the outside of the shoulder are not typical (and if present, raise the possibility of infection or another diagnosis).

The most important thing to understand about shoulder bursitis is that it is rarely a stand-alone problem. The bursa is irritated because the structures around it are not moving the way they should. The most common picture is some version of "subacromial pain syndrome" or "shoulder impingement syndrome", in which the rotator cuff tendons, the bursa, and sometimes the long head of the biceps tendon are all squeezed in the same small space under the acromion. When the shoulder blade does not move well, when the rotator cuff is weak relative to the larger surface muscles, or when posture pushes the shoulder forward, the subacromial space gets narrower, and the bursa and the rotator cuff tendons take the load.

This is why the pain often persists or comes back. The bursitis itself responds to anti-inflammatory measures (rest, ice, NSAIDs, sometimes cortisone). But if nothing is done about the loading pattern that created the irritation, the bursitis flares again as soon as activity returns. The clinical reality is that calming the bursa is the easy part. Changing what the bursa is being asked to deal with is what makes the result hold.

Risk factors are recognisable. Jobs and hobbies that involve repetitive overhead reaching (painters, mechanics, trades, swimmers, throwing sports, racket sports). A sudden increase in load or a return to activity without conditioning. Forward-shoulder posture from a desk job. A prior shoulder injury that changed how the joint moves. Age, with most cases occurring from the forties onward. Systemic factors like rheumatoid arthritis, gout, and poorly controlled diabetes can also predispose the bursa to inflammation by altering tissue health.

HOW DO I KNOW IF MY SHOULDER PAIN IS BURSITIS, OR SOMETHING ELSE?

Several conditions cause pain in the same part of the shoulder, and the patterns overlap. A proper assessment is what tells them apart, but a few patterns are worth recognising.

The bursitis and impingement pattern usually develops gradually over weeks or months. Pain is on the outside or front of the shoulder, worse with reaching out or up, worse at night, and often worse when sleeping on the affected side. There is usually a painful arc when raising the arm. Strength is generally preserved on careful testing, even if testing reproduces the pain.

A rotator cuff tendinopathy or partial tear can look similar and very often coexists with bursitis. The distinguishing feature is usually weakness on specific resisted tests, particularly external rotation or the empty can test. A complete rotator cuff tear, which is more common from the late fifties onward, often produces real weakness and difficulty raising the arm against gravity, particularly after a specific incident or fall.

Adhesive capsulitis (frozen shoulder) presents with a progressive loss of motion (especially external rotation), which is not characteristic of pure bursitis.

Calcific tendinitis can produce sudden severe pain in the same region, often without an obvious trigger, and is visible as a calcium deposit on imaging.

Cervical spine referral can produce shoulder pain, but usually with neck symptoms and sometimes with arm symptoms below the elbow.

Septic bursitis or septic arthritis is the urgent one to recognise. Hot, swollen, red shoulder with severe pain, fever, or feeling systemically unwell needs immediate medical attention, not rehabilitation.

This is why an assessment is worth doing rather than self-diagnosing. The treatment for bursitis with rotator cuff tendinopathy is different from the treatment for frozen shoulder, which is different again from the treatment for a full-thickness cuff tear. Getting the diagnosis right is the first step.

WHAT DOES THE RESEARCH SAY ABOUT TREATMENT?

The evidence base for non-surgical care of subacromial bursitis (and the broader subacromial pain or impingement syndrome that it usually sits within) has matured considerably over the past decade. A few patterns are well-supported.

Structured exercise is the backbone of treatment. Programs that combine rotator cuff strengthening, scapular stabilisation work, and progressive loading reliably outperform passive treatments. The 2024 systematic review and meta-analysis by Zhong and colleagues in Frontiers in Neurology pulled together 8 randomised controlled trials with 387 participants and found that scapular stabilisation exercises reduce pain and improve function in subacromial pain syndrome compared with control conditions. The effect is moderate rather than dramatic, and range of motion does not always change with these exercises alone, but the pain and function gains are real.

Shockwave therapy has emerging evidence in this space. The 2025 systematic review and meta-analysis by Aldardour and colleagues in the Bulletin of Faculty of Physical Therapy examined the published randomised trials on shockwave therapy for shoulder impingement syndrome. The review concluded that shockwave therapy reduces pain on the visual analog scale and improves function on the SPADI score compared with control conditions, with the strongest effects in the 2 to 3 month window. The review also noted that the body of evidence has heterogeneity and that protocols vary across trials.

Shockwave therapy compared head-to-head with a cortisone injection. The 2023 three-arm randomised controlled trial by ElGendy and colleagues in the American Journal of Physical Medicine and Rehabilitation randomised 60 patients with shoulder impingement syndrome of more than 3 months duration to one of three arms: physical therapy plus a single corticosteroid injection, physical therapy alone, or physical therapy plus shockwave therapy. At 4 weeks there were no significant differences between the groups. At 12 weeks the shockwave group showed significantly greater improvement than the corticosteroid group on subacromial space and internal rotation. The interpretation that the authors and subsequent commentary settle on is reasonable: a single cortisone injection helps in the short term but does not deliver more than physical therapy alone by 3 months, and combining shockwave with physical therapy produces meaningfully better mid-term outcomes than a cortisone injection plus physical therapy.

Cortisone injections. The general place of corticosteroid injections in subacromial pain is the same one they hold across most soft-tissue conditions. They can provide quick short-term pain relief by reducing inflammation, and that window can be used to start rehabilitation work that the patient could not previously tolerate. They do not, in trials with longer follow-up, deliver clearly better outcomes than well-executed conservative care alone, and repeated injections into the same shoulder carry real risks (further weakening of already-tendinopathic rotator cuff tissue, and small but non-zero risks of infection or other adverse effects). The decision belongs with the patient's physician.

Combination therapy outperforms any single modality. The recurring theme across the literature is that the best outcomes come from layered care: structured exercise as the backbone, manual therapy and mobility work where it fits, shockwave or other adjuncts in stubborn cases, and short-term symptom management (NSAIDs, ice, sometimes a single cortisone injection) where appropriate.

"Bursitis pain calms down fairly easily. Keeping it calm is the harder problem, and it depends on changing how the shoulder is loaded, not just how the bursa is feeling." Uran Berisha, BSc Physiotherapy, Founder of Unpain Clinic

HOW DOES TREATMENT FOR SHOULDER BURSITIS WORK AT UNPAIN CLINIC?

At Unpain Clinic in Edmonton, treatment for shoulder bursitis sits inside a structured assessment-and-plan process and runs in coordination with your physician where injection or surgical input may be appropriate.

A typical first visit includes a full history of how the pain started, what aggravates and eases it, what loading the shoulder has been under (work, sport, lifestyle), what treatments have already been tried, and what you actually want to get back to. The examination covers the shoulder joint itself, the rotator cuff (resisted tests for each of the four muscles), the scapula (resting position, control during arm movement), the thoracic spine, and the neck. Bursitis rarely sits alone, and the picture above and below the shoulder usually has something to say.

If the symptoms or examination suggest something beyond bursitis (rotator cuff tear with clear weakness, suspected frozen shoulder with significant motion loss, suspected septic bursitis with systemic signs), we coordinate with your family physician for imaging or further workup before continuing.

From there, the toolbox we draw on is built around what the evidence supports.

Physiotherapy with progressive loading is the backbone. Isometric rotator cuff work in the early phase to settle pain. Scapular stabilisation work (rows, scapular retraction and depression, prone Ys and Ts, lower trapezius and serratus activation). Rotator cuff strengthening in stages. Thoracic mobility work to take pressure off the subacromial space. A paced return to the activities that flare the shoulder.

Focused shockwave therapy is used as an adjunct in cases that have not responded to a fair trial of progressive loading, or in long-standing presentations from the outset. Focused shockwave reaches the deeper tissues and is the form most relevant for chronic subacromial bursitis and the associated rotator cuff tendinopathy.

Radial shockwave therapy is layered in for surrounding muscle tightness and trigger points that contribute to altered shoulder mechanics (upper trapezius, levator scapulae, the pectoralis group).

EMTT therapy is selectively used in long-standing cases where deep inflammation and broad sensitisation are part of the picture. It is painless, pairs well with shockwave, and is typically used as a complementary modality rather than a stand-alone treatment.

NESA neuromodulation is reserved for cases where the nervous system has become hypersensitive and pain has started to outlast what the tissue findings would predict.

Massage therapy supports the broader picture by addressing secondary tension in the surrounding muscles, particularly during the phases when the rehabilitation work is still building.

If the assessment turns up a clear surgical candidate (full-thickness rotator cuff tear in the right clinical picture, significant structural changes that need a surgical opinion), we say so and connect you with the right specialist. We do not push for or against surgery or injections. Those decisions belong with you and your physician.

WHAT TO REALISTICALLY EXPECT FROM A COURSE OF CARE

Most subacromial bursitis cases improve meaningfully within 6 to 12 weeks of structured care. The pain pattern usually starts to settle in the first 2 to 4 weeks of good rehabilitation work, with bigger gains in function and tolerance over the weeks that follow.

A course of shockwave therapy in this setting is typically 4 to 6 weekly sessions, layered on top of the rehabilitation program that continues between visits. The sensation during treatment is best described as a strong tapping or pulsing pressure on the area. Discomfort is adjustable in real time. Mild soreness for a day or two in the treated area is common.

The pattern of improvement is rarely dramatic in the first session. Many people notice the first shifts after 2 or 3 sessions, often as a reduction in the night pain or improved tolerance for reaching overhead. The bigger changes tend to build over the 4 to 12 weeks after the last session as the surrounding tissues remodel under continued rehabilitation work.

Factors that influence response. How long the symptoms have been there, the underlying pattern (pure bursitis versus bursitis with significant rotator cuff tendinopathy versus a partial cuff tear), what you are returning to (a desk job versus an overhead-sport season), age, and how consistently the home program is actually done. Bursitis rehabilitation is not a passive treatment. The work happens at home, and the clinic visits are coaching and adjustment.

The boundary of what conservative care can and cannot do is worth stating clearly. It does not change the shape of the acromion (a few people have a bony architecture that predisposes them to repeated impingement and may eventually need a surgical opinion). It does not regrow tendon tissue that has been substantially torn. What it does, reliably in most cases, is settle the bursa, strengthen the surrounding cast, and change the loading pattern so the shoulder can function without recurrent flares.

WHAT CAN I SAFELY DO AT HOME BETWEEN VISITS?

This is general education, not individual medical advice. Results vary. The principles below assume you have been cleared by a clinician and have an individualised program in hand.

1. Modify the specific movements that flare it, do not stop moving. Heavy overhead pressing, dips, behind-the-neck pulldowns, and prolonged overhead work are common provocateurs. Most other upper-body and lower-body work, brisk walking, cycling, and modified pressing (within pain-free ranges) are usually fine and helpful.
2. Use ice and short-term anti-inflammatories during the acute phase. Ten to fifteen minutes of ice over the painful area, particularly in the evening or after activity. Over-the-counter NSAIDs (ibuprofen or naproxen) and topical anti-inflammatory gels can help locally for a short course. Oral NSAIDs are short-term symptom management and belong in a conversation with your physician if you intend to use them beyond a few days.
3. Sleep position matters more than people expect. Sleeping on the affected side is one of the most common causes of night pain. Try sleeping on the opposite side with a pillow under the affected arm to keep it supported and slightly forward, or sleeping on your back with a pillow propping the affected arm slightly forward of the body.
4. Build scapular control. Scapular retractions and depressions, prone Ys and Ts (lying face-down on a bed and lifting the arms into Y and T shapes with the thumbs up), and banded rows train the muscles that hold the shoulder blade in the right position during arm movement. The Zhong 2024 meta-analysis points to this work specifically.
5. Build rotator cuff strength. External rotation with a light resistance band, internal rotation at controlled angles, and "empty can" work in a pain-free range. Two or three sets of 10 to 15 repetitions, two or three times a week, is a reasonable starting point. Mild discomfort during the work is acceptable. Sharp pain is a sign to back off.
6. Open the front of the shoulder. Tightness in the pectoralis muscles and the front of the chest pulls the shoulder forward and narrows the subacromial space. A doorway pec stretch (forearm on a door frame, gentle lean forward), foam-roller chest opening, and thoracic extension work over a foam roller help directly.
7. Posture during the working day. Forward-shoulder posture during prolonged sitting is a meaningful contributor in many cases. Raise the monitor to eye level, get the keyboard close enough that you are not reaching forward, and stand and reset the shoulders every 30 to 45 minutes.
8. Resist the urge to test the shoulder with peak loading before it is ready. The most common avoidable cause of a relapse is returning to a peak load at the first feeling of being better, before the shoulder has been progressively reloaded back to that demand.
9. Track function, not just pain. Range of motion, ability to sleep on the affected side, ability to reach overhead without a pinch, tolerance for the activities you care about. Pain alone is a noisy signal. Function is the better measure of real progress.

WHEN SHOULD I SEE A PHYSICIAN INSTEAD OF (OR ALONGSIDE) REHABILITATION?

The following are not "wait and see" situations. Contact your physician promptly, or seek emergency care if symptoms are severe.

• Sudden severe shoulder pain after a fall or a specific injury, particularly with a feeling that something gave way.
• A clear loss of strength in the arm, particularly inability to actively raise the arm against gravity.
• A hot, red, swollen shoulder, particularly with fever or feeling systemically unwell (possible septic bursitis or septic arthritis, which is a medical emergency).
• Significant night pain that is not controlled by reasonable measures and is interfering with sleep on most nights for several weeks.
• Numbness, tingling, or weakness traveling down the arm or into the hand.
• Pain that has not improved at all after 4 to 6 weeks of appropriate rest and structured rehabilitation.
• A combination of shoulder pain with unexplained weight loss, fever, or a known history of cancer.
• A clear loss of motion (particularly external rotation) over weeks, which can suggest adhesive capsulitis rather than bursitis.

FREQUENTLY ASKED QUESTIONS

What are the most common symptoms of shoulder bursitis?

Pain on the outside or front of the shoulder, worse with reaching out or up, worse when lifting heavier objects, and often worse at night, particularly when sleeping on the affected side. Many people have a painful arc when raising the arm. Tenderness when pressing just below the bony tip of the shoulder is common. Strength is generally preserved, even if testing reproduces the pain. Visible redness or significant swelling is not typical and raises the possibility of infection or another diagnosis.

How long does shoulder bursitis take to heal?

Most cases improve meaningfully within 6 to 12 weeks of structured care, with the pain pattern usually starting to settle in the first 2 to 4 weeks and bigger gains in function over the weeks that follow. Cases that have been going on for many months sometimes take longer, particularly when significant rotator cuff tendinopathy has developed alongside the bursitis. If meaningful progress is not happening by the 6-week mark of well-executed care, that is a real signal that the picture should be reviewed.

Should I get a cortisone injection for shoulder bursitis?

A single cortisone injection can take the edge off in the short term and create a window in which rehabilitation work becomes easier to tolerate. In randomised trials with 3-month follow-up, cortisone injections combined with physical therapy do not deliver clearly better outcomes than physical therapy alone, and combinations of physical therapy with shockwave therapy have outperformed physical therapy with cortisone in mid-term outcomes. Repeated injections into the same shoulder carry real risks. The decision belongs with your physician. We do not provide injections and we do not push for or against them.

What exercises should I avoid with shoulder bursitis?

The exercises that most reliably flare a painful subacromial bursa are heavy overhead pressing, behind-the-neck movements (behind-the-neck pulldowns or military press), upright rows, deep dips, lateral raises above shoulder height, and heavy pressing in general while the shoulder is irritable. Most other upper-body work in pain-free ranges, lower-body work, brisk walking, and cycling are usually fine. The list is not permanent. As the shoulder responds to rehabilitation work, most of these movements come back gradually with better form and load management.

Does shockwave therapy hurt, and is it safe for shoulder bursitis?

Most people describe the treatment as a strong tapping or pulsing pressure on the area. Discomfort is adjustable in real time, and the sensation stops as soon as the device is off. Mild soreness for a day or two afterward is common. Serious adverse effects are rare in the published literature for shockwave delivered by a trained clinician with proper screening. Shockwave is avoided over active infections, malignancies in the treatment area, certain implanted devices in the field, during pregnancy, and over major nerves and vessels.

Can shoulder bursitis come back?

Yes, when the loading pattern that produced it has not been changed. The most common cause of recurrence is returning to the same activity load without addressing the underlying contributors (rotator cuff strength, scapular control, posture, training progression). Rehabilitation that ends when the pain is gone but before the strength and control gains have been consolidated has a much higher recurrence rate than rehabilitation that runs through the full progression.

Will heat or ice help shoulder bursitis?

Ice is generally more useful in the early or acute phase, when the bursa is actively inflamed. Ten to fifteen minutes a few times a day in that phase, particularly in the evening, can take the edge off. Heat is more useful for surrounding muscle tightness in the longer-term picture (upper trapezius and pectoral muscles in particular) and before doing the mobility work. Neither is the treatment. They are short-term comfort measures alongside the actual rehabilitation work.

Do I need a doctor's referral to come to Unpain Clinic?

No referral is needed. Physiotherapists and chiropractors in Alberta practice as primary contact clinicians. Some insurance plans require a physician's note for reimbursement, so check your plan if you intend to claim. If our assessment turns up something that needs a physician's involvement (suspected septic bursitis, suspected significant rotator cuff tear, suspected frozen shoulder needing imaging, or a case that has not responded to a fair conservative trial), we coordinate that referral.

Is shoulder bursitis treatment covered by insurance?

Coverage depends on your insurer and plan. Most extended health plans reimburse physiotherapy, chiropractic, and massage therapy under standard categories. Adjunctive treatments like shockwave therapy and EMTT are typically billed under the supervising clinician's category where applicable. Public provincial health insurance does not typically cover any of this in a private clinic setting. Confirm with your plan, and a Health Spending Account through your employer can usually be used as well.

PATIENT TESTIMONIAL

“I came in to get some neck and shoulder pain addressed just recently. The clinic is very clean and organized, all the staff are very polite and inviting. I had the pleasure of having lacina as my chiropractor and she was amazing. She went through my full assessment and acknowledged all my issues and made a great plan to treat them. She explained every step and process very thoroughly and made sure my comfort and well-being were priority. I left feeling so much better and will definitely be returning whenever I have any other issues! 10/10 recommend!”- Jay M

ABOUT THE AUTHOR

Written by Uran Berisha, Founder of Unpain Clinic and Medical Shockwave Institute. Uran has a Bachelor of Science in Physiotherapy and is an International Educator in Shockwave Therapy. Last reviewed on June 11, 2026. Learn more at Unpain Clinic.

BOOK YOUR INITIAL ASSESSMENT

If your shoulder pain has not budged after rest and basic care, and you want a clear, honest read on what is actually going on (and a real plan to fix it), the next step is a proper assessment. We will look at the whole picture, coordinate with your physician where injections or further workup are appropriate, and tell you honestly which tools fit your case. No referral needed. No long contracts. Book your initial assessment with Unpain Clinic.

REFERENCES

1. ElGendy MH, Mazen MM, Saied AM, ElMeligie MM, Aneis Y. Extracorporeal Shock Wave Therapy vs. Corticosteroid Local Injection in Shoulder Impingement Syndrome: A Three-Arm Randomized Controlled Trial. American Journal of Physical Medicine and Rehabilitation. 2023;102(6):533-540. https://journals.lww.com/ajpmr/Fulltext/2023/06000/Extracorporeal_Shock_Wave_Therapy_vs_.8.aspx
2. Aldardour A, Al-Qudimat AR, Etoom M, et al. Extracorporeal shockwave therapy as a treatment option for shoulder impingement syndrome: a systematic review and meta-analysis. Bulletin of Faculty of Physical Therapy. 2025;30:43. https://bfpt.springeropen.com/articles/10.1186/s43161-025-00300-3
3. Zhong Z, Zang W, Tang Z, Pan Q, Yang Z, Chen B. Effect of scapular stabilization exercises on subacromial pain (impingement) syndrome: a systematic review and meta-analysis of randomized controlled trials. Frontiers in Neurology. 2024;15:1357763. https://pubmed.ncbi.nlm.nih.gov/38497039/
4. Faruqi T, Rizvi TJ. Subacromial Bursitis. In: StatPearls. Treasure Island (FL): StatPearls Publishing; 2023. https://www.ncbi.nlm.nih.gov/books/NBK541096/