Shoulder pain is one of those things that sneaks up on you. Maybe it starts as a dull ache after a long day. You may feel it when you reach for the seatbelt or lift a bag overhead. And maybe, before you even realise what’s happening, simple things like getting dressed or lying on your side start to feel unbearable. If that story sounds familiar, there’s a decent chance you’re dealing with shoulder bursitis.

Now, here’s the good news. For most people, shoulder bursitis is treatable. And one of the most effective treatment paths? Physiotherapy. Let’s unpack shoulder bursitis, its causes, and why your physio might be your shoulder’s best ally.

First Things First: What Is Shoulder Bursitis?

The shoulder is full of small fluid-filled sacs called bursae. These act like cushions between bones, tendons, and muscles to prevent friction. When one of those sacs becomes irritated and inflamed, it’s called bursitis. The most commonly affected shoulder is the subacromial bursa, which sits between the top of your shoulder blade and the rotator cuff tendons.

When it’s working correctly, the bursa  lets your tendons glide smoothly. But when it’s inflamed, it creates swelling and pressure, and that turns even basic shoulder movement into a painful task. Overhead motions, in particular, tend to flare things up.

So What Does It Feel Like?

The most common symptoms include:

• Pain in front  on the outside or front of the shoulder
• Discomfort when lifting your arm above shoulder height
• Difficulty reaching behind your back or fastening a bra
• Pain lying on the affected side
• Swelling  or a visible lump (in more severe cases)
• Limited range of motion or stiffness

People often describe it as a sharp pain when they move, with a lingering ache at rest. For many, it’s worse at night, especially when sleeping on the sore side.

What Causes It?

There’s no single cause, but shoulder bursitis often develops because of overuse. Repetitive overhead movements (think painting, swimming, lifting kids, or overhead pressing at the gym) stress the bursa over time.

Other factors can also play a role:

• Poor posture that narrows the space in your shoulder joint
• Weak rotator cuff or scapular muscles
• Shoulder impingement or tendinopathy
• A fall or trauma to the shoulder
• Age-related  wear and tear
• Autoimmune conditions such as rheumatoid arthritis

Sometimes bursitis is secondary to another issue, like rotator cuff tendinitis or a frozen shoulder. So it’s essential to look at the whole picture.

How Is Shoulder Bursitis Diagnosed?

Diagnosis usually starts with a thorough assessment. A physiotherapist will ask about your symptoms and daily activities, then test your shoulder’s range of motion, strength, and function. Special tests help identify whether it’s the bursa, tendons, joint capsule, or a combination.

In some cases, imaging like ultrasound or MRI is used to confirm the diagnosis or rule out other conditions. X-rays may show calcification in shoudler if the bursitis is chronic.

Can Physiotherapy Fix It? Absolutely.

Physiotherapy is considered the first-line treatment for most cases of shoulder bursitis. The aim is to reduce inflammation, restore movement, build strength, and prevent flare-ups.

Here’s what that might look like:

1. Managing the Inflammation. In the early phase, your physio will help you settle the pain. This may involve:

• Relative rest and activity modification
• Ice to reduce swelling
• Taping or bracing to support the joint
• Soft tissue massage to ease muscle tension
• Education about sleeping positions and posture

2. Restoring Range of Motion. Gentle mobility exercises are introduced once pain levels are tolerable. These may include:

• Pendulum swings
• Table slides
• Band-assisted stretches
• Open book stretches (great for the thoracic spine, too)

The goal here is to keep the shoulder moving without aggravating the bursa.

3. Strengthening the Shoulder Weakness, particularly around the rotator cuff and scapula, contributes to poor shoulder mechanics. Your physio will design a tailored strengthening program. Examples include:

• Scapular wall slides
• Theraband rows
• Isometric holds for shoulder
• External rotation exercises

These exercises are progressed gradually, depending on your tolerance.

4. Addressing the Root Cause To prevent future flare-ups, your physiotherapist will examine broader movement patterns. Are your neck and thoracic spine moving well? Is your posture causing compression at the shoulder? Do you lack core or scapular stability?

This is where a good physiotherapist makes all the difference. They go beyond the painful shoulder and assess how your whole upper body functions.

5. Adjunctive Therapies In some cases, adjunct treatments like extracorporeal shockwave therapy or high-powered laser therapy may be used alongside physiotherapy. These can help accelerate healingby reducing inflammation, improving circulation, and stimulating tissue repair. While not always necessary, they can be helpful for persistent or recurring cases of bursitis.

Do You Ever Need a Cortisone Injection?

Sometimes, yes. If your pain is severe or not improving after a few weeks of treatment, your GP may suggest a cortisone injection to reduce inflammation. It can offer temporary relief, but the pain often returns after a few months. Repeated cortisone injections are not without risk. Over time, they may weaken tendons or lead to joint damage, so they’re best used sparingly and always in conjunction with a proper rehab plan.

When Is Surgery Needed?

In most cases, it’s not. Surgery is a last resort and is typically only considered if a structural issue (like a bone spur or tendon tear) has not responded to months of conservative treatment.

What’s the Recovery Time Like?

That depends. Mild cases can improve in a few weeks with rest and rehab. More persistent or chronic bursitis may take 6 to 12 weeks to settle fully. The key is not to rush. Loading too early or too aggressively often sets things back. Your physio will guide the pacing based on your symptoms and response to treatment.

Why Physiotherapy Is the Smart First Step

Medication might take the edge off, but it rarely solves the problem. Physiotherapy, however, focuses on what is causing your pain. It gives you a clearer understanding of your body and practical ways to manage it, not just now but in the future too.

And it is more than just doing a few shoulder exercises. It is about picking up on those small clues your body gives you and adjusting everyday habits that add up, like tweaking your desk setup, carrying your bag differently, or finding a better sleep position.

Wellington’s Approach to Shoulder Bursitis

At Severn Clinics, we see shoulder bursitis week in and week out. Every case is a little different. Some people are dealing with it for the first time after an injury, while others have had shoulder pain come and go for years.

Our first step is a thorough assessment to determine what is actually causing the problem. Once we know that, we build a rehab plan tailored to you. Everything we do is straightforward, backed by research, and focused on your goals. We explain things in plain language and make sure decisions are made together.

Some people need manual therapy, others need a clear home program. Sometimes, we link up with your GP or sports doctor. Whatever the path, we stay with you the whole way.

Final Thoughts

Shoulder bursitis can be incredibly frustrating. It interferes with sleep, work, workouts, and even basic self-care. But it’s also very treatable.

With early assessment and the right rehab plan, most people see significant improvement without injections or surgery. So if your shoulder is grumbling, don’t wait and hope it goes away.

Get it checked. Take action. And give your shoulder the chance to move the way it should.