How long do you have to make a medical negligence claim?
In many cases the standard limitation period is three years, but the point at which those three years begin can vary and important exceptions may apply.
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Diagnosis
Delayed or Missed Cancer Diagnosis Claims
A delayed or missed cancer diagnosis can affect treatment options, prognosis and the extent of treatment required. Claims can involve failures in referral, investigation, reporting or follow-up, with specialist evidence used to assess what difference an earlier diagnosis would probably have made.
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Could this apply to you?
1
Failure to refer on suspected-cancer pathways
2
Abnormal results not followed up
3
Scan or pathology interpretation errors
Last updated 6 August 2026
Understanding the claim
What can amount to delayed or missed cancer diagnosis?
A poor outcome alone does not prove negligence. The investigation considers what a reasonably competent healthcare professional should have done and whether any failure made a material difference to the outcome.
Failure to refer on suspected-cancer pathways
This can justify investigation depending on the clinical circumstances, available evidence and harm caused.
Abnormal results not followed up
This can justify investigation depending on the clinical circumstances, available evidence and harm caused.
Scan or pathology interpretation errors
This can justify investigation depending on the clinical circumstances, available evidence and harm caused.
Symptoms repeatedly attributed to another condition
This can justify investigation depending on the clinical circumstances, available evidence and harm caused.
Delayed biopsy or investigation
This can justify investigation depending on the clinical circumstances, available evidence and harm caused.
Failure to communicate or act on a diagnosis promptly
This can justify investigation depending on the clinical circumstances, available evidence and harm caused.
Evidence
How a delayed or missed cancer diagnosis claim may be investigated
Relevant evidence depends on the circumstances. Common sources include:
01
Primary and secondary care records
The evidence is considered alongside the chronology and appropriate independent expert opinion.
02
Pathology and imaging
The evidence is considered alongside the chronology and appropriate independent expert opinion.
03
Cancer pathway timeline
The evidence is considered alongside the chronology and appropriate independent expert opinion.
04
Oncology and relevant specialist expert evidence
The evidence is considered alongside the chronology and appropriate independent expert opinion.
The process
What happens after an initial enquiry
- 01
Initial enquiry
Tell us what happened, when the treatment took place and how you were affected.
- 02
Early assessment
The key facts, limitation position and whether further investigation may be appropriate are considered.
- 03
Records & evidence
Relevant medical records, chronology and evidence of any financial losses may be obtained.
- 04
Expert review
Appropriate independent experts may address breach of duty, causation, condition and prognosis.
- 05
Claim & negotiation
Where the evidence supports a claim, the relevant defendant can be notified and liability or settlement discussed.
- 06
Resolution
The matter may conclude by agreement or, where necessary, through the court process.
Compensation
What can compensation take into account?
There is no reliable generic calculator for medical negligence. Where liability is established, compensation can reflect the individual injury and financial consequences supported by evidence.
- Pain, suffering and loss of amenity
- Past and future loss of earnings
- Care and assistance
- Rehabilitation and treatment
- Equipment, travel or accommodation needs
- Other reasonable losses caused by the injury
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Tell us what happened.
Questions answered
Delayed or Missed Cancer Diagnosis FAQs
Can I claim for a delayed or missed cancer diagnosis?
Potentially. It is necessary to establish both an avoidable failure in care and that the delay or missed diagnosis caused a material difference to treatment, prognosis or another recoverable outcome.
Do you need oncology expert evidence?
Cancer cases commonly require independent specialist evidence to address diagnosis, treatment options, prognosis and causation.
Related guidance
Useful medical negligence guides
How medical negligence claims work
A plain-English overview of breach of duty, causation, medical records, expert evidence and the main stages of a claim.
Read guide →
Can you claim for an A&E misdiagnosis?
Key considerations where emergency care failed to recognise, investigate or appropriately respond to a serious condition.
Read guide →Free initial enquiry
Talk to us about a potential delayed or missed cancer diagnosis claim.
Tell us what happened and our team can explain the next steps.