What it is

Shoulder bursitis refers to irritation of the subacromial or subdeltoid bursa. The bursa is a small fluid-filled sac that reduces friction. It can become sensitive during overhead work or after a minor injury.

Pain improves when the load is managed and the cuff and scapula share work more evenly.

What happens when it occurs

The bursa and nearby tissues become irritable. The shoulder hikes to avoid pain, which narrows the subacromial space. Strength and smooth movement reduce compression and symptoms.

Common causes and risk factors

  • Repetitive overhead tasks or sport
  • Deconditioning and poor scapular control
  • Training spikes after time off
  • Coexisting cuff tendinopathy

Who is most affected

Manual workers, swimmers, and new gym users.

Typical symptoms

  • Painful arc with elevation
  • Night pain when lying on the shoulder
  • Sharp pain when reaching behind the back

When to seek care

If pain persists or disturbs sleep despite simple changes.

How we diagnose

History and clinical tests. Ultrasound can identify bursal fluid and guide injections when needed.

Management

  • Strength for the cuff and scapula
  • Range and thoracic mobility
  • Technique coaching for the reach and press
  • Image-guided injection for irritable bursitis in selected cases

Rehabilitation milestones

Phase 1 weeks 0 to 2: pain control, isometrics, gentle range.

Phase 2 weeks 2 to 8: strength and control, adjust work and training.

Phase 3 weeks 8 to 16: overhead tolerance and work drills.

Phase 4 months 4 to 6: endurance and power where needed.

Readiness to progress

  • Night pain fading
  • Strength symmetry within 90 per cent
  • Overhead tasks completed without next-day pain

Prevention

  • Balance pressing and pulling volumes
  • Advance the overhead load gradually
  • Maintain thoracic mobility

Australia snapshot

  • Common in trades and swimming communities
  • Ultrasound-guided injections are widely available
  • Most cases improve without surgery

Latest insights

Calm the bursa by enhancing how the shoulder shares load.

Simple range and strength exercises can help alleviate symptoms quickly.

Frequently Asked Questions

No. It is painful but responds well to load management and strength training.

Helpful when irritability blocks progress. Continue training after relief.

Reduce volume early and build back with better control.

It can often take weeks for pain to settle and months for full capacity to return.

Opposite side with your arm supported, or lying on your back with a pillow under your arm.

Yes, with exercise choices that respect the pain-free zone.