At a glance

  • You need to prove your injury, its link to work, and employer fault
  • RSI often develops gradually, so evidence builds over time
  • Medical records and workplace evidence are both essential
  • You do not need one single piece of proof. A combination is used
  • A strong evidence trail can improve your chances of compensation
  • You usually have three years to bring a claim
  • You can claim even if you still work for your employer

If you’re dealing with pain caused by repetitive work, you might already feel your job is to blame. But how do you actually prove it?

To make a successful repetitive strain injury claim in the UK, you need to show three things: that your condition exists, that your work caused or worsened it, and that your employer didn’t take reasonable steps to prevent it.

This guide explains what evidence you’ll need, how to build a strong case, and what to do next.

What is RSI and why is evidence so important?

Repetitive strain injury (RSI) is a general term for conditions caused by repeated movements, overuse or poor posture at work. It often affects your hands, wrists, arms, shoulders or neck.

You might also hear it called an upper limb disorder.

Unlike a sudden accident, RSI develops over time. That’s what makes evidence so important. You’re not pointing to one incident, you’re showing a pattern.

What do I need to prove in an RSI compensation claim work case?

To succeed in a repetitive strain injury claim, you’ll usually need to show three key things:

  • You have a recognised injury or condition
  • Your work caused or contributed to it
  • Your employer failed to take reasonable steps to protect you

This is often known as negligence. In simple terms, your employer had a duty of care to keep you safe and did not meet that duty.

What evidence is needed for an RSI claim?

There’s no single document that proves your case. Instead, you build a picture using different types of evidence.

Medical evidence

Medical records are one of the most important parts of your claim. They show that your condition exists and how serious it is. This can include:

  • GP records
  • Hospital or specialist reports
  • Physiotherapy notes
  • A formal diagnosis

Medical evidence helps confirm your symptoms and may also link your symptoms to your work.

Workplace evidence

Workplace evidence shows how your job could have caused your injury. This can include:

  • Details of your daily tasks
  • Job descriptions
  • Training records
  • Risk assessments

You might also be asked to describe how often you performed certain tasks, how long they lasted and whether breaks were provided.

Employer records and complaints

If you reported your symptoms to your employer, this can be very important. Helpful records include:

  • Emails or written complaints
  • Incident or accident reports
  • Occupational health referrals

Occupational health reports are assessments that look at how your health affects your work and whether your job is affecting your health. If your employer ignored your concerns, this could support your claim.

Witness evidence

Colleagues may be able to confirm:

  • The type of work you did
  • The conditions you worked in
  • Whether complaints were raised

Witness statements can strengthen your case, especially if they support your version of events.

Personal records and symptom diary

Keeping your own records can make a real difference. This might include:

  • A diary of symptoms
  • Notes on when pain started or worsened
  • Records of time off work
  • Photos of your workstation or equipment

This helps show how your condition developed over time and how it affects your daily life.

How do I prove my RSI was caused by work?

You don’t need to prove your job was the only cause. You just need to show it played a significant part.

Claims are decided on the balance of probabilities. In simple terms, it needs to be more likely than not that your work caused or worsened your condition.

For example, if your symptoms got worse at work, improved when you rested, and followed years of repetitive tasks, that can support your claim.

What if my RSI developed gradually?

That’s very common. RSI rarely happens overnight.

In these cases, your evidence needs to show a clear pattern over time, such as:

  • A timeline of symptoms
  • Medical records over time
  • Work history

A gradual onset doesn’t stop you from claiming. It just means the evidence needs to tell the full story.

What is the time limit for making a claim?

You’ll usually have three years to make a claim. This starts from your “date of knowledge”.

That’s when you first realised, or should have realised, that your condition was linked to your work.

Because RSI develops slowly, this date isn’t always clear. Getting advice early can help you stay within the time limit.

How much compensation could I receive?

Compensation is based on your individual circumstances. It usually includes:

  • General damages for pain and suffering
  • Special damages for financial losses

Financial losses can include lost earnings, treatment costs and other expenses.

RSI compensation amounts in the UK vary depending on how severe your condition is, how long recovery takes, and the long-term impact.

What does no win, no fee mean?

If you’re looking for repetitive strain injury solicitors offering no win, no fee legal services, you’re probably concerned about cost.

A no win, no fee agreement means you typically only pay legal fees if your claim succeeds. This is also known as a Conditional Fee Agreement.

It reduces financial risk, but the terms will always be explained clearly before you decide to go ahead.

How to start gathering evidence for your RSI claim

If you think you could have a claim, it’s important to start building evidence early. You should:

  • Seek medical advice
  • Report symptoms to your employer
  • Keep records of your work tasks
  • Take photos of your workstation
  • Keep a symptom diary
  • Speak to a solicitor

The sooner you start, the easier it is to gather accurate and useful evidence.

Your next steps

Proving an RSI claim is about building a clear picture of your condition, your work and how your employer responded.

If your job caused or worsened your injury, and your employer failed to protect you, you could have a strong case. Getting the right evidence in place early can make a significant difference.

Contact Express Solicitors today for a free consultation and get expert advice on your next steps.

RSI compensation claim FAQs

What is the most important evidence in an RSI claim?

Medical evidence is essential, but a strong claim usually includes a combination of medical, workplace and personal records.

Can I claim without a formal diagnosis?

A diagnosis strengthens your case, but early symptoms and medical records may still support a claim. It is best to seek medical advice as soon as possible.

How do I prove my employer was at fault?

You need to show they failed to take reasonable steps, like carrying out risk assessments, providing proper equipment or responding to complaints.

What if I did not report my symptoms at the time?

You might still be able to claim, but it can make the case more complex. Other evidence, like medical records and work history, can still help.

How long does it take to gather evidence?

Some evidence can be collected quickly, but medical reports and workplace records can take longer. Starting early is always beneficial.

Can I still claim if I work from home?

Yes. Employers still have a duty of care to ensure your workstation is safe, even if you work remotely.

Do I need a solicitor to help with evidence?

You are not required to have one, but a solicitor can help identify what evidence is needed and how to present it effectively.