A medical negligence claim lets you seek compensation when a healthcare professional breaches their duty of care and causes avoidable harm. To succeed you must prove both a breach of duty and that the breach caused injury. In England & Wales you usually have three years from the negligent treatment, or from the date you realised it may have caused harm, to claim. Most cases settle without a trial, and claims are typically funded on a no win, no fee basis.
Related services: Medical Negligence Claims · GP Negligence Claims · NHS Negligence Claims · Private Hospital Negligence
Medical treatment is intended to diagnose illness, relieve symptoms, prevent deterioration and protect life. When healthcare professionals fail to provide treatment to an acceptable standard and avoidable harm occurs, the consequences can be devastating. Medical negligence claims arise when a doctor, nurse, hospital, GP, dentist, surgeon, midwife or other healthcare provider breaches their duty of care and causes injury that would otherwise have been avoided. These are among the most complex areas of civil litigation, and they are not about blaming healthcare professionals for unavoidable outcomes — medicine is not risk-free. Instead, a claim examines whether treatment fell below a legally acceptable standard and whether that failure caused avoidable harm. This guide explains how medical negligence claims work in England & Wales, from the legal tests through to settlement and compensation.
Medical negligence occurs when two key elements are both present. It is not enough to show that treatment was substandard or that a mistake was made; both elements must be proven on the balance of probabilities for a claim to succeed.
A healthcare professional must have breached their duty of care by providing treatment that falls below the standard expected of a reasonably competent professional in that field.
That breach must have caused injury, or materially worsened the patient's condition or outcome. The harm must be linked to the substandard care — not simply to the underlying illness.
In many cases, establishing both points requires detailed medical evidence and independent expert opinion.
You do not need to work out for yourself whether these tests are met. An initial assessment — reviewing what treatment was provided, whether the outcome was avoidable, whether supportive expert evidence is likely, and whether you remain within the time limit — can usually clarify your prospects. Read more about what counts as medical negligence and the different types of medical negligence claim.
Medical negligence claims are governed by principles developed through case law. Three legal building blocks shape almost every claim.
The leading authority asks: would a responsible body of similarly qualified medical professionals have acted in the same way? If a responsible body would have supported the treatment provided, negligence may not be established — even where the outcome was poor. The courts also assess whether the professional opinion relied upon is itself reasonable and logically defensible.
Patients are entitled to make informed decisions about their treatment. Doctors must explain the material risks of treatment and any reasonable alternatives. A failure to warn of significant risks may amount to negligence, even where the procedure itself was performed competently.
Even where breach of duty is proven, it must also be shown that "but for" the negligent treatment the injury would not have occurred. In delayed diagnosis cases this can involve assessing whether earlier treatment would have improved survival rates or reduced long-term harm. Causation is frequently the most challenging aspect of medical negligence litigation.
The way the law approaches GP misdiagnosis continues to develop — see our explainer on Jess's Rule and what it means for misdiagnosis claims.
Medical negligence can arise across almost every area of healthcare. Some of the most common categories include:
For deeper reading, see our guides on late-diagnosed cancer, delayed sepsis diagnosis, surgical errors and cosmetic negligence and your legal rights.
Medical negligence claims follow a structured process under the Pre-Action Protocol for the Resolution of Clinical Disputes. The key stages are set out below.
All relevant records are requested from GP practices, hospitals, private clinics and specialists. These may include handwritten notes, imaging reports, laboratory results and referral letters. Records are reviewed carefully to establish the chronology of treatment and identify potential breaches of duty.
Independent medical experts in the relevant specialty are instructed to give an objective opinion on the care provided. They assess whether the standard of care was acceptable, whether there was a breach of duty, and whether that breach caused or contributed to the injury. Supportive expert evidence is essential — without it, a medical negligence claim cannot proceed.
If expert evidence supports the claim, a formal Letter of Claim is sent to the healthcare provider or organisation responsible. It sets out the allegations of negligence, the factual background and relevant treatment, the injuries and harm that resulted, and a summary of the financial losses and impact on the claimant.
The healthcare provider is typically given four months to investigate the allegations and respond. During this period they review the records and obtain their own expert evidence where necessary. They may admit liability, deny liability and dispute the claim, or admit liability in part while challenging other aspects.
If liability is admitted, the claim moves to the valuation stage, where the harm suffered and any financial losses are assessed. If liability is denied, court proceedings may be issued so the dispute can be determined — though most medical negligence claims still settle through negotiation before reaching a trial.
For a plain-English walkthrough, see our guide to the steps to claim for medical negligence, and our explainer on how to prove NHS negligence.
Prefer to read offline? Download our step-by-step Medical Negligence Claims guide as a free PDF.
Download the PDFUnder the Limitation Act 1980, proceedings must usually be issued within three years of the negligent act, or of the date you first became aware that your injury may have been caused by negligence (the date of knowledge). Limitation rules are strict, and missing a deadline can prevent a claim entirely. Important exceptions apply:
Worried you might be running out of time? It is free to check where you stand — with no obligation.
Check my time limit →For a worked example in a specialist context, see our article on time limits for eye surgery negligence claims.
There is no fixed amount — compensation depends on the severity of the injury, whether the outcome would have been different with proper care, and the financial impact. Awards are usually divided into two parts:
| Area of harm | Key factors | Indicative range |
|---|---|---|
| Minor short-term harm (full recovery) | Brief additional pain, complete recovery | £1,000 – £12,000 |
| Delayed diagnosis (treatable outcome) | Period of avoidable symptoms, additional treatment | £10,000 – £55,000 |
| Significant surgical injury | Further surgery, lasting symptoms, scarring | £20,000 – £90,000+ |
| Serious delayed cancer diagnosis | Reduced survival, more invasive treatment | £60,000 – £300,000+ |
| Severe disability / lifelong care | Permanent disability, lifetime care and losses | £300,000 – several £million |
| Psychiatric injury (PTSD, depression) | Severity, duration, impact on work and life | £3,500 – £100,000+ |
Ranges draw on the Judicial College Guidelines and are for general guidance only — they are not a quote. The figure in any individual case depends on its specific facts, and financial losses (special damages) are awarded on top. Where negligence has caused a bereavement, our guide on medical negligence causing death explains your legal rights.
Want to understand what your claim could be worth? Our team can give you a free, no-obligation assessment.
Get a free assessment →Where liability is admitted, early funding may be secured for physiotherapy, psychological therapy, specialist treatment and nursing care. Early rehabilitation can improve long-term outcomes. In the same circumstances, interim payments can be secured before final settlement to help fund treatment, care and financial stability — particularly important where an injury has affected your ability to work.
While the process can take time, it is important that claims are investigated thoroughly. Rushing a settlement can result in under-compensation, particularly where the long-term impact of an injury or future care needs have not yet been fully understood.
Most medical negligence claims are handled under a Conditional Fee Agreement (no win, no fee). This means no upfront legal costs, no legal fees if the claim does not succeed, and a capped success fee only if compensation is awarded. We also advise on After the Event insurance to protect against adverse costs risks. All funding arrangements are explained in clear terms before any agreement is signed.
Medical negligence claims are among the most complex areas of civil law, requiring detailed legal analysis, independent medical expertise, careful financial assessment and realistic strategic judgment. But beyond the legal complexity, these claims often arise at deeply vulnerable moments — after a delayed cancer diagnosis, a traumatic birth outcome, a serious surgical complication or the loss of a loved one. Our approach is evidence-led: we secure and analyse the full medical records, identify the correct clinical specialties, instruct appropriately qualified independent experts, and ensure breach of duty and causation are addressed thoroughly. We provide structured, honest guidance — if a claim is unlikely to succeed, we will say so clearly. We explain each stage, provide realistic timeframes, and ensure that final decisions always remain yours. More reasons to choose NJS Law.
Contacting NJS Law does not commit you to a claim. We'll listen, explain how the law applies, and tell you honestly whether we can help — confidential, free and with no obligation.
Start my free claim check →or call free on 0800 6525 656 · No win, no fee on eligible claims (subject to terms)
No. Not every poor outcome or complication amounts to negligence. To succeed in a claim, it must be proven that the treatment fell below a reasonable professional standard and directly caused avoidable harm.
The Bolam test is the legal standard used to assess breach of duty. It asks whether the treatment provided would be supported by a responsible body of medical professionals skilled in that particular area. If a responsible body would have acted the same way, negligence may not be established — even if the outcome was poor.
Causation means proving that the negligent treatment caused injury or materially worsened the outcome — for example, that earlier diagnosis would likely have improved survival chances, or that correct treatment would probably have prevented further harm. It is often the most complex part of a medical negligence claim.
An initial legal assessment will consider what treatment was provided, whether the outcome was avoidable, whether supportive expert evidence is likely, and whether you are within the time limit. Medical records and independent expert review are essential before a definitive view can be given.
In most cases you have three years from the date of negligent treatment, or from the date you first became aware your injury may have been caused by negligence. Different rules apply for children and for individuals who lack mental capacity.
Yes. A parent or litigation friend can bring a claim on behalf of a child at any time before their 18th birthday. If no claim is brought earlier, the child then has until their 21st birthday to issue court proceedings.
Most medical negligence claims settle without a trial. Court proceedings may be issued as part of the process, particularly in higher-value cases, but a final hearing is uncommon. If a hearing becomes necessary, full preparation and representation will be provided.
Yes. If negligent treatment causes a recognised psychiatric injury — such as PTSD, depression or an anxiety disorder — this may form part of the claim. Medical evidence will be required.
You can bring a medical negligence claim against NHS providers. Claims are handled through NHS Resolution, which manages clinical negligence claims on behalf of NHS trusts. The process is similar to claims against private healthcare providers.
No. You are entitled to pursue compensation without fear of being denied future treatment. Healthcare providers must continue to provide appropriate care regardless of a claim.
Some complications are recognised risks of treatment. However, a claim may still arise if the complication resulted from negligent technique, or if you were not properly informed of material risks before consenting to treatment.
Risks may include expert evidence not ultimately supporting negligence, causation being difficult to prove, and litigation taking longer than expected. Funding arrangements and any potential costs risks are explained clearly before you proceed.
Explore specific topics in detail — part of our complete medical negligence resource.
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