A clicking or popping shoulder during workouts can feel strange, but it is one of the most common issues people notice when lifting weights or returning to fitness. Sometimes the sound is painless. Other times it comes with discomfort, tightness or a feeling that the shoulder is not moving smoothly.
Although it can be worrying, most shoulder clicking has a clear explanation. Understanding what is happening can help you train safely and prevent the problem from becoming something more serious.
Below are the most common reasons your shoulder might click during exercise and what a physiotherapist can do to help.
1. Muscles around the shoulder are not coordinating well
The shoulder depends on the rotator cuff and shoulder blade muscles to keep the joint centred as you move. If these muscles are weak, tired or not firing at the right time, the humeral head can shift slightly during movement. This can create clicking or popping, especially during pressing or overhead exercises.
Signs this might be the cause include:
- Clicking during bench press, push ups or overhead press
- A feeling that the shoulder is “not stable”
- Difficulty controlling the last part of the movement
Improving strength and coordination of the rotator cuff and shoulder blade muscles usually reduces the clicking over time.
2. Tightness around the front of the shoulder
Long hours of sitting can tighten the front of the shoulder and chest. When this happens, the shoulder moves forward and loses its natural alignment. As a result, the joint does not glide smoothly during exercise and may produce clicking.
You may notice:
- Clicking when lowering weights
- A pulling sensation in the front of the shoulder
- Limited shoulder extension or rotation
Restoring mobility through targeted stretching and mobility work often makes the shoulder move more freely and quietly.
3. Tendon irritation from training load
If you have recently increased your upper body training volume or returned to exercise after a break, the shoulder tendons may become irritated. An irritated tendon often changes the way the shoulder moves, which can cause clicking during lifting.
Common signs include:
- Clicking that started after a new program
- Pain or soreness the day after training
- Fatigue during simple movements
A physiotherapist can adjust your training load and teach you how to strengthen the shoulder without aggravating the tendon.
4. Shoulder blade movement issues
The shoulder blade acts as the foundation for all shoulder movements. If the shoulder blade does not rotate or tilt properly, the shoulder joint may compensate and produce clicking.
This often appears during:
- Pulling movements
- Overhead exercises
- Push up variations
Improving shoulder blade control can dramatically reduce clicking and improve strength.
5. Normal joint sounds
Not all clicking is a sign of a problem. Some people naturally have more mobile joints, and occasional clicking can simply be a benign joint noise.
Benign clicking:
- Comes and goes
- Is not painful
- Has no effect on strength or movement
If the clicking is painless and does not interfere with exercise, it is usually nothing to worry about.
When should you see a physio?
Book a physiotherapy assessment if you notice:
- Shoulder clicking with pain
- Loss of strength
- Clicking that gets worse over time
- A feeling of instability
- Difficulty performing overhead exercises
The earlier the issue is assessed, the easier it is to correct. A physio can identify the cause, improve your movement patterns and guide you through the right strengthening program.
