RSI guide · Forearm

Forearm Pain

Forearm pain is one of the most common ergonomic complaints. The muscles that move your hand and fingers live in your forearm — so every click, grip and keystroke loads them.

By the No More Pain Ergonomics team · Australian ergonomic specialists since 2013 · Updated November 2026

Quick answer

Forearm pain at the computer usually comes from overworking the wrist flexor muscles (palm side) or extensor muscles (back of the forearm) through gripping, clicking, typing and a palm-down mouse posture. A vertical mouse, a looser grip, straight wrists, forearm support and regular breaks reduce the load.

In this guide

Where is your pain?

Top of the forearm (extensors)

Pain on the back of the forearm, often linked to lifting the wrist, hovering over the mouse and clicking. Can lead to tennis elbow.

Underside of the forearm (flexors)

Pain on the palm side, often from gripping and finger movement. Can lead to golfer’s elbow.

Thumb side

Pain running from the thumb into the forearm may be De Quervain’s tenosynovitis.

What causes forearm pain at the computer?

  • Using a flat mouse, which twists the forearm palm-down all day
  • Gripping the mouse tightly or hovering your fingers over the buttons
  • Typing with your wrists bent up
  • Repetitive clicking, scrolling and dragging
  • No breaks — the muscles never get a chance to recover

How to reduce forearm pain

  1. Switch to a vertical mouse. It untwists the forearm so the muscles can relax.
  2. Relax your grip and rest your fingers on the buttons rather than hovering.
  3. Keep your wrists straight while typing — lower or flatten your keyboard if your wrists bend up.
  4. Support your forearms on the desk or a forearm support.
  5. Use the whole arm to move the mouse rather than flicking from the wrist.
  6. Take micro-breaks and change tasks regularly.

Recommended equipment

Shop ergonomic mice

Frequently asked questions

Why does my forearm hurt when I use a mouse?

A standard mouse twists your forearm palm-down and requires you to grip and click repeatedly, which keeps the forearm muscles working all day. Over time this can cause fatigue, pain and tendon irritation.

Does a vertical mouse help forearm pain?

Yes, for many people. A vertical mouse holds your hand in a handshake position, which untwists the forearm bones and lets the muscles relax.

How long does forearm pain take to improve?

It varies. Mild strain can settle within days to weeks with better ergonomics and breaks. Persistent pain should be assessed by a health professional.

Related guides

This guide provides general ergonomic information only and is not a substitute for medical advice, diagnosis or treatment. If you have ongoing or worsening symptoms, see your GP or a health professional such as a Physiotherapist, Hand Therapist or Occupational Therapist.

No More Pain Ergonomics · nomorepainergonomics.com.au/pages/forearm-pain · 1300 898 965 · info@nomorepainergonomics.com.au · Updated November 2026

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