Swimming places thousands of repetitive overhead movements through the shoulder during a single session. If the muscles and tendons aren't able to tolerate these loads, pain can gradually develop. Whether you're a recreational swimmer, triathlete or competitive athlete, early treatment can help you recover and prevent symptoms from becoming persistent.
At The Addison Physiotherapy, we regularly assess swimmers with shoulder pain. Our goal is to identify why your shoulder has become overloaded, restore strength and mobility, and help you return to swimming with confidence.
Key Takeaways
- Shoulder pain after swimming is usually an overload injury.
- Rotator cuff tendinopathy and shoulder bursitis are common causes.
- Poor technique and sudden increases in training often contribute.
- Most swimmers recover without surgery.
- Physiotherapy helps improve strength, technique and training load.
What causes shoulder pain after swimming?
Swimming requires the shoulder to repeatedly move through a large range of motion while generating force through the water.
Over time, this repetitive loading can irritate the tendons and muscles that stabilise the shoulder.
Common causes include:
- Rotator cuff tendinopathy
- Shoulder bursitis
- Poor stroke technique
- Weakness around the shoulder blade
- Sudden increases in swimming volume
- Fatigue during longer sessions
Although it's often called "swimmer's shoulder", there isn't one single injury responsible. Instead, several structures can become overloaded depending on your technique, training and shoulder strength.
What are the symptoms of shoulder pain after swimming?
People commonly experience:
- Pain during freestyle or butterfly
- Pain reaching overhead
- Pain at the front or side of the shoulder
- Pain after finishing a swim session
- Shoulder fatigue earlier than usual
- Pain sleeping on the affected side
Some swimmers only notice discomfort after training, while others experience pain during every stroke.
When should I see a physiotherapist?
It's worth booking an assessment if:
- Shoulder pain persists after several swim sessions.
- Pain is limiting your training.
- You're changing your stroke to avoid discomfort.
- You're experiencing weakness.
- Symptoms continue to worsen.
The earlier shoulder pain is addressed, the easier it is to modify training before it becomes a long-term problem.
Do I need imaging?
Usually, no.
Most swimming-related shoulder pain can be diagnosed through a clinical assessment.
Imaging may be appropriate if:
- There has been a traumatic injury.
- Significant weakness is present.
- Symptoms don't improve despite rehabilitation.
- A larger tendon tear is suspected.
MRI findings don't always correlate with pain, so treatment should be based on your symptoms and physical examination rather than imaging alone.
How is shoulder pain after swimming treated?
Treatment aims to reduce irritation while improving the shoulder's ability to tolerate swimming.
Treatment usually includes:
Education
Understanding why your shoulder became overloaded and what changes are needed during recovery.
Training Modification
Temporarily reducing swimming volume, intensity or certain strokes while symptoms settle.
Progressive Strengthening
Improving rotator cuff strength, shoulder blade control and overall shoulder capacity.
Return to Swimming
Gradually increasing swimming distance and intensity while monitoring symptoms and refining technique where necessary.
Our goal isn't simply to reduce pain - it's to help you return to swimming stronger and reduce the likelihood of recurrence.
Can I keep swimming?
Often, yes.
Complete rest is rarely necessary.
Many swimmers can continue training by reducing total volume, avoiding painful strokes or modifying session intensity while completing a structured strengthening program.
Your physiotherapist can help determine how much swimming is appropriate during your recovery.
How long does recovery take?
Recovery depends on the severity of symptoms and how long they've been present.
