Mouse Shoulder: Where Your Arm and Mouse Should Sit

Desk checklist

Setting	Aim for	Quick check
Mouse position	Keep the mouse close to your keyboard. This minimizes reaching out to the side.	Is your mouse directly beside your keyboard, or is there a wide gap?
Elbow position	Keep your mousing arm’s elbow close to your body, with your upper arm hanging relaxed and vertical.	Let your arm hang naturally at your side. Now bend your elbow 90 degrees. Your hand should be where your mouse is.
Forearm support	Rest your forearm on your desk or a supportive chair armrest. Avoid letting your arm hover without support.	Are your shoulder muscles working to hold your arm up, or is your arm fully supported?
Keyboard choice	A compact keyboard (without a number pad) allows you to place the mouse closer to your body’s midline.	Do you have to reach over a number pad to get to your mouse?
Varying tasks	Alternate between mouse use, keyboard shortcuts, and other tasks. Consider learning to use the mouse with your other hand.	Have you used the same hand on your mouse for the last hour without a break or change in activity?
Movement breaks	Take frequent, short breaks to move. Gently roll your shoulders up, back, and down to release tension.	When was the last time you took your hand off the mouse and moved your shoulder?

Shoulder, neck, or upper back discomfort from using a computer mouse is often called “mouse shoulder.” It typically results from straining the muscles around the shoulder joint by repeatedly reaching for a mouse that is not in a good position.

Making small adjustments to your workstation and habits can help address this discomfort. The goal is to reduce the reach and strain on your arm and shoulder while you work.

Check Your Arm and Mouse Position

A common cause of strain is placing the mouse too far away from your keyboard, forcing you to reach. Your mouse should be right beside your keyboard. This simple change minimizes how far you have to extend your arm.

Your elbow should stay close to your body, with your upper arm hanging in a relaxed, vertical line. To check this, let your arm hang naturally at your side, then bend your elbow about 90 degrees. Your hand should land where your mouse is.

Avoid holding your arm up without support. Your forearm should be able to rest on your desk or an adjustable chair armrest. This allows your shoulder muscles to relax instead of constantly working to hold your arm in the air.

Adjust Your Equipment and Work Habits

If you use a wide keyboard with a number pad, you may be forced to place your mouse in an awkward, distant position. A compact keyboard without a number pad can help you bring the mouse closer to your body’s midline.

Try to vary your tasks to give your mousing arm a rest. Use keyboard shortcuts for common commands, and consider learning to use the mouse with your non-dominant hand for short periods.

Take frequent, short breaks for movement. Set a timer to remind yourself to take a 30-second break every half hour. You can use this time to gently roll your shoulders up, back, and down to release built-up tension.

Common mistakes

Placing the mouse too far from the keyboard, causing a long reach.
Using a desk or chair that is too high, causing the shoulder to be shrugged upwards.
Holding the arm in the air without support from an armrest or desk surface.
Gripping the mouse tightly and holding constant tension in the shoulder muscles.
Using a wide keyboard that forces the mouse into an awkward, distant position.

Low-cost fixes

Move your mouse right next to your keyboard.
Use keyboard shortcuts for common tasks like copy and paste to reduce mouse clicking.
Set a timer to remind yourself to take a 30-second break every half hour to roll your shoulders.
Try placing the mouse on the other side of your keyboard and using your non-dominant hand for a while.
If your chair armrests are adjustable, set them to a height that just supports your relaxed forearm.

What it will not do

This guidance cannot diagnose the specific cause of shoulder pain.
Ergonomic adjustments may not be enough to address pain from an underlying medical condition or previous injury.
New positions can feel awkward at first and may take time to provide relief.
This information is not a substitute for a professional medical evaluation or a formal workplace ergonomic assessment.

Quick questions

What is the best position for my mouse?

Place your mouse directly beside your keyboard. This position minimizes reaching and allows your upper arm to hang relaxed and close to your body.

How can I reduce strain without buying new equipment?

Move your current mouse closer to your keyboard, use keyboard shortcuts to reduce mouse use, and take regular short breaks to move and roll your shoulders.

Why does my shoulder hurt from using a mouse?

Discomfort often comes from repeatedly reaching for a poorly positioned mouse. This action strains the muscles around the shoulder joint, especially if your arm is not supported.

When to see a doctor or physio

This guidance is not a substitute for professional medical advice. You should see a doctor or physical therapist if your pain is severe, persistent, or gets worse over time. Also seek a professional evaluation if you experience numbness or tingling, or if your symptoms do not improve after trying these adjustments.

Pain is severe, persistent, or worsens over time.
You experience numbness, tingling, or weakness in your arm or hand.
The pain interferes with your sleep or daily activities.
Your symptoms do not improve after trying these adjustments.
You are worried about your symptoms.

How this page was put together: general guidance consistent with public workstation and movement-break resources from OSHA, CDC/NIOSH and the NHS, and with standard exercise handouts. It was drafted with AI assistance, checked in a separate review pass and edited under our editorial policy. It is not medical advice and no clinician reviewed it. Last checked October 2026.