Cancer negligence claims

We understand how overwhelming it can feel when everything has suddenly changed - and how difficult it is to know what to do next. You may be entitled to support and compensation, and our specialist, awardwinning clinical negligence team is here to guide you safely, with no pressure and no risk.

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Author

Alison Flaherty

Director of Clinical Negligence

Last Updated

16th July 2026

Can I make a cancer negligence claim?

It’s completely natural to wonder whether what happened was unavoidable, or if something went wrong in your care. You could have a cancer negligence claim if a healthcare professional failed to diagnose your cancer properly or in time, and this led to avoidable harm. This can include situations such as a missed diagnosis, delays in diagnosis, being given the wrong diagnosis, being told you were “all clear” when cancer was present, or delays in referral, testing, or followup care.

Negligence may have played a role if these delays or errors meant your treatment started later than it should have, reduced your treatment options, or affected your overall prognosis. Even if you’re unsure what happened, or have been told it was just unfortunate timing, it doesn’t always mean that proper care was given. Many people only begin to question their treatment after learning more about what should have happened.

You may still be able to make a claim even if you feel uncertain, worried about fault, or some time has passed. Speaking to our specialists can help you understand your situation clearly and check whether you may be entitled to support, with no pressure to move forward.

Example of a cancer negligence claim

Imagine a patient’s symptoms are repeatedly dismissed, the relevant investigative tests are not carried out and this leads to a delayed cancer diagnosis. Because the right procedures weren’t followed, the healthcare team might have missed opportunities to provide earlier treatment. This delay might then lead to a more advanced cancer developing, or might mean that fewer treatment options are available for the patient. In these circumstances, there could be grounds for a claim.

Common cancer negligence claims we support

Expertise you can trust

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AVMA Panel Members
Over 400 specialists in our Medical Negligence team

What compensation can help with

Easing financial pressure and supporting your future care.

After a cancer misdiagnosis or delay, it’s not just your health that’s affected, it’s your sense of financial security and sense of self. Compensation could help relieve some of that pressure, so you can focus on your treatment and wellbeing, rather than worrying about how you’ll manage financially.

Compensation can also help to fund:

Private or ongoing medical care
Access to specialists treatment and tests
Counselling and welfare support
Practical support at home if you need it
Lost earnings, if your ability to work is impacted
Financial stability for you and your family moving forward
The value of a claim reflects how the delay or error has affected your life, including any changes to your prognosis, the treatment you’ve needed, and the support you might need in the long term. In more serious cases, where there has been a significant impact on quality of life or future prognosis, compensation can give you the assurance that you’re properly supported.

Understanding the potential value

Compensation is always based on the individual impact of what happened, including how delays affected treatment, long-term health, and daily life. For example, one client we supported experienced a delayed cancer diagnosis that led to aggressive, lifechanging surgery and permanent complications, with the case settling for £625,000 to reflect the seriousness of that impact.

Understanding interim payments

Where possible, interim payments can also be arranged while your cases is ongoing. This means we can help you access financial support early in the process, so you can access private cancer treatment or manage daytoday costs without having to wait until your case is resolved.

Specialist cancer negligence solicitors

Our specialist solicitors provide clear guidance and expert support.

Why choose Fletchers for your cancer negligence claim

Choosing the right firm matters when you’re dealing with the impact of a delayed or missed cancer diagnosis. Our specialist solicitors understand the impact a missed or delayed cancer diagnosis, and have extensive experience in complex cancer negligence claims. We work closely with medical experts to fully understand how delays have affected your diagnosis, treatment, and future. With leading accreditations, strong legal rankings, and a proven record of securing highvalue settlements, you can trust you’re in safe and experienced hands.

Expertise you can rely on

Specialist clinical negligence solicitors with expertise in cancer misdiagnosis and delayed diagnosis claims
Experience handling complex, lifechanging and fatal cancer negligence cases
Members of the Law Society Clinical Negligence Panel
Accredited by the Association of Personal Injury Lawyers (APIL)
Recognised in leading legal directories including Chambers and Partners and The Legal 500
Proven track record of securing high-value settlements in complex medical negligence claims

You’re not alone

We understand how difficult this can be.

We know how hard this must feel for you, especially when you’re left questioning whether more could have been done to treat your cancer. We’ve supported many people who have faced the same uncertainty after a delayed or missed cancer diagnosis, and who have had to undergo further treatment and testing for their condition.

The impact often goes far beyond your health. It can mean more intensive treatment, added worry about the future, and changes to your confidence, independence, and day-to-day life. Many people also feel the strain on their work, finances, and the plans they had for themselves and their families.

As a result, you may be dealing with feelings of frustration, loss of trust, or wondering how things could have been.. These experiences are deeply personal, and it’s completely normal to feel overwhelmed. Many of the people we help have been in a similar position. But with the right support, our clients have been able to find stability, and a way forward that feels right for them.

People we’ve supported

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FAQs about cancer negligence claims

How long after cancer negligence can I make a claim?

You have a three-year window from the “date of knowledge” to make a claim for cancer negligence. While some people may realise the negligence immediately, others may take longer to notice it.

It’s important to understand that the three-year timeframe starts from the date you first became aware of the error – not when it actually happened. If the person affected was under 18 at the time, the deadline extends to three years from their 18th birthday (i.e., their 21st birthday).

If the person lacks mental capacity, there’s no time limit for filing a claim. If in doubt, please speak with our cancer misdiagnosis lawyers, who can offer advice specific to you.

How long does a cancer negligence claim take?

The time it takes to resolve a cancer misdiagnosis claim depends on the complexity of the case and whether the healthcare provider admits responsibility. Most claims, on average, settle within 2-3 years. But this depends on the circumstances of your case.

How to start a cancer negligence claim?

The first step is to get in touch with our team for a free, no-obligation consultation. We’ll listen to what happened, answer your questions honestly, and let you know whether we think you have a cancer negligence claim worth pursuing. If we take on your case, we’ll gather your medical records, work with independent oncology and diagnostic experts to assess the standard of care, and build a thorough case on your behalf. We’ll handle all communication with the other side, keep you informed at every stage, and work to secure interim payments where possible. All cancer negligence claims at Fletchers are handled on a No Win No Fee basis, so there is no financial risk to you in getting started.

Do cancer negligence claims go to court?

Most cancer negligence claims are resolved through negotiation rather than going to court. Our experienced solicitors will negotiate firmly and sensitively on your behalf to secure a cancer misdiagnosis settlement that reflects the full impact your diagnosis has had on your life.

Although very rare, if court proceedings are necessary, we’ll guide you through every stage, prepare you fully, and represent you throughout. Our team will make sure you’re supported, informed, and never face the process alone.

Who else can make a cancer misdiagnosis claim?

In some situations, a cancer misdiagnosis claim can be made by someone other than the patient themselves. This may include:

Family members bringing a claim on behalf of a loved one who lacks the mental capacity to manage their own case

Parents or guardians making a claim for a child who was misdiagnosed

The estate or dependents of someone who has sadly passed away as a result of a delayed or missed cancer diagnosis

If you’re unsure whether you’re able to bring a claim on someone else’s behalf, our solicitors can explain your options clearly and sensitively.

How much does it cost to make a cancer misdiagnosis claim?

Cancer misdiagnosis claims at Fletchers are handled on a No Win, No Fee basis. For you, this means:

No upfront costs

No legal fees if your claim is unsuccessful

A clear, agreed success fee only if you win

If your cancer misdiagnosis compensation claim is successful, we charge an agreed percentage of the total awarded to you. This will be discussed clearly with you during the course of your legal case.

What evidence do I need to support my cancer negligence claim?

To make a cancer misdiagnosis claim, we’ll need to gather evidence to support your case. It’s our job to prove that negligence contributed to your health concerns, and that you’ve been caused harm as a result.

Some evidence we might need to gather for a successful cancer misdiagnosis claim include:

Comprehensive medical records

Test results

Referrals

All correspondence between you and consultants, doctors or other medical professionals

An independent medical expert’s written opinion

A personal statement detailing your misdiagnosis

Financial records if the misdiagnosis impacted you financially

Evidence of a worsening condition

Witness statements

You may already have some of this evidence compiled, but if you don’t, our team can support you with gathering anything that is missing.

Can I sue the NHS for cancer misdiagnosis?

You may be able to sue the NHS if a cancer misdiagnosis led to avoidable harm. This may include missed symptoms, misinterpreted results, delayed referrals, or being wrongly given the “all clear” when cancer was present.

To make a successful cancer misdiagnosis claim, we need to prove that the standard of care you received was negligent and that this error affected your treatment options, prognosis, or outcome.

What are the effects of cancer misdiagnosis?

If cancer has been misdiagnosed, the effects can be serious. You might experience:

Symptoms worsening or persisting

Treatment failing to improve the condition

Missed opportunities for earlier treatment

Disease progression that could have been avoided

You can also make a claim for a delayed cancer diagnosis, which may have occurred due to delayed appointments or referrals, or misinterpretation of test results.