Quick Answer: You can make a sepsis negligence claim in the UK if a doctor or nurse negligently failed to spot, investigate or treat sepsis in time, and that delay caused you avoidable harm — organ damage, amputation, a longer recovery, or the death of a loved one. Sepsis is a recognised medical emergency: national guidance expects clinicians to screen for it and start the “Sepsis Six” treatment bundle within one hour of suspicion. Around 245,000 people are affected by sepsis in the UK each year and roughly 48,000 die, and the UK Sepsis Trust estimates about a quarter of those deaths are preventable. Most claims must be started within three years (Limitation Act 1980).
What is a sepsis negligence claim?
A sepsis negligence claim is a clinical negligence case brought when substandard medical care allowed sepsis to be missed, delayed or undertreated, causing harm that timely treatment would have avoided. Sepsis is the body’s overwhelming, dysregulated response to an infection, in which the immune system begins to damage the patient’s own tissues and organs. Because outcomes worsen rapidly — studies suggest the risk of death rises with every hour treatment is delayed — the law treats a negligent delay in recognising sepsis as a serious breach of the duty of care.
The claim does not compensate you for having an infection. It compensates you for the additional, avoidable harm caused by the negligence — the difference between what happened and what would have happened with competent, timely care.
When does missed or delayed sepsis count as medical negligence?
Missed sepsis becomes negligence when a competent clinician would have recognised and treated it, and the failure to do so caused avoidable harm. Not every bad outcome is negligent — sepsis can be fatal even with excellent care — so the test is whether the treatment fell below the standard of a reasonably competent practitioner. In practice, the most common failures involve not screening for sepsis despite clear red-flag signs and not starting urgent treatment quickly enough.
Typical examples of negligent sepsis care include:
- Failure to screen — a patient with a known infection and warning signs (high or very low temperature, rapid heart rate, fast breathing, confusion, low blood pressure) is not assessed using a recognised sepsis screening tool.
- Failure to act on observations — abnormal NEWS2 early-warning scores are recorded but nobody escalates to a senior clinician.
- Delayed antibiotics — broad-spectrum antibiotics are not given within the recommended hour, sometimes delayed by many hours in a busy A&E department.
- Failure to safety-net — a patient is sent home from a GP surgery, walk-in centre or A&E without being told which symptoms mean “return immediately”.
- Post-surgical sepsis missed — signs of infection after an operation are not investigated, a recognised risk in surgical negligence claims.
In the cases that cross our desk, the single most common theme is not a difficult diagnosis but a failure to escalate — the early warning signs were written in the notes, yet no one acted on them quickly enough.
What is the “Sepsis Six” and why does it matter to my claim?
The “Sepsis Six” is a bundle of six urgent actions that should be delivered within one hour of suspecting sepsis, and a failure to deliver them on time is often central to a negligence claim. It was developed by the UK Sepsis Trust and is widely used across the NHS as the standard first response. Where the notes show that sepsis was suspected but the one-hour bundle was not completed, that gap is frequently strong evidence of a breach of duty.
The six actions are:
- Give oxygen to keep saturations in the target range.
- Take blood cultures before antibiotics where possible.
- Give intravenous antibiotics (broad-spectrum, urgently).
- Give intravenous fluids to support blood pressure.
- Measure lactate to gauge the severity of the illness.
- Measure urine output to monitor the kidneys.
The clock is the key piece of evidence. Your solicitor will compare the timestamps in your records — when red-flag signs first appeared, when sepsis was suspected, and when each Sepsis Six action was actually delivered — against what should have happened.
How do you prove a sepsis negligence claim?
You prove a sepsis claim by establishing four elements: duty of care, breach, causation and damages. Duty is automatic once a clinician treats you. Breach and causation are where these cases are won or lost, and causation is usually the harder of the two.
The four elements, in plain terms:
- Duty of care — owed by every NHS or private clinician who treats you.
- Breach — the care fell below the standard of a reasonably competent practitioner (the Bolam test, refined by Bolitho).
- Causation — the breach, not the underlying infection, caused the additional harm. This often turns on what would have happened if antibiotics had been given hours earlier.
- Damages — you suffered real, measurable harm: organ damage, amputation, psychiatric injury, lost earnings, or bereavement.
Causation is the battleground in sepsis claims. A defendant may admit treatment was delayed but argue the outcome would have been the same anyway. That is why expert evidence — usually from specialists in emergency medicine, microbiology and intensive care — is essential to show that earlier treatment, on the balance of probabilities, would have changed the result.
How much compensation can you claim for sepsis negligence?
Sepsis compensation depends entirely on the lasting harm the negligence caused, so awards range from modest sums to several hundred thousand pounds or more. Damages are made up of general damages (for pain, suffering and loss of amenity, assessed using the Judicial College Guidelines, 18th edition, published 9 April 2026) and special damages (your actual financial losses — lost earnings, care, equipment, adaptations). Because sepsis can damage almost any organ, there is no single “sepsis bracket” — the valuation follows the specific injuries left behind.
The figures below are indicative ranges only, included to show how widely sepsis outcomes vary. They must be checked against the current Guidelines before being relied on:
| Lasting harm after sepsis | Indicative general-damages guide | Status |
|---|---|---|
| Full recovery, short-lived illness | Lower thousands | |
| Significant bowel or digestive damage | Tens of thousands | |
| Serious kidney damage | Tens of thousands to low six figures | |
| Amputation of limb(s) | Six figures, rising with severity | |
| Fatal sepsis (claim by the estate/dependants) | See bereavement award + dependency below | Statutory figure confirmed |
Do not quote the indicative figures above as fixed values. Two patients who both “survived sepsis” can have very different claims — one left with a full recovery, another with an amputation and lifelong care needs. A solicitor values your claim on your medical evidence, not a generic table.
What can a family claim if sepsis caused a death?
Where negligently treated sepsis causes a death, the estate and dependants can bring a claim, which can include a fixed statutory bereavement award of £15,120. This award is set by the Fatal Accidents Act 1976 (section 1A) and applies to deaths on or after 1 May 2020 in England and Wales. It is paid to a defined group — most commonly a spouse or civil partner, a qualifying cohabitee of at least two years, or the parents of a child who died under 18.
A fatal sepsis claim can also include:
- A dependency claim — for the income and services the person provided to their family.
- Funeral expenses — reasonable costs of the funeral.
- The deceased’s own pain and suffering — a claim brought on behalf of the estate for the period before death.
The £15,120 bereavement award is fixed and does not change with the circumstances of the death. The much larger part of most fatal claims is the dependency element, which is calculated individually.
How long do you have to make a sepsis claim?
You normally have three years to start a sepsis negligence claim, but the start date is not always obvious. Under the Limitation Act 1980 the three years usually runs from the date of the negligence, or from the later “date of knowledge” — when you first realised the harm may have been caused by negligent care. In a fatal case, the period generally runs for three years from the date of death or the family’s date of knowledge.
Important exceptions to the three-year rule:
- Children — the three years does not begin until the child’s 18th birthday, so a claim can be brought up to their 21st birthday.
- Lack of mental capacity — where sepsis caused a brain injury affecting capacity, the time limit may be paused (potentially indefinitely) while that incapacity lasts.
- The court’s discretion — under section 33 a judge can occasionally allow a late claim, but this is never guaranteed.
Do not wait for the deadline. Sepsis claims rely on detailed medical records and expert reconstruction of the timeline, so the earlier a solicitor can secure the evidence, the stronger the case. You can read more about realistic timescales in our guide to how long a medical negligence claim takes.
How are sepsis negligence claims funded?
Most sepsis negligence claims are funded by a “no win, no fee” agreement, so there is nothing to pay upfront and nothing to pay if the claim fails. Formally a Conditional Fee Agreement (CFA), it means your solicitor only takes a fee if you win, capped at 25% of certain damages under the Legal Aid, Sentencing and Punishment of Offenders Act 2012. “After the Event” insurance is normally arranged to cover the other side’s costs if the claim is unsuccessful.
You can read a fuller explanation in our guide to no win, no fee claims, or get a rough idea of value using our free compensation calculator.
Frequently asked questions
Is sepsis always the result of negligence?
No — sepsis is not always caused by negligence and can be fatal even with excellent care. A claim only succeeds where the medical team fell below a competent standard and that failure caused avoidable harm. Many sepsis cases are tragic but not negligent, which is exactly why each case has to be assessed on its own medical records.
Can I claim if I survived sepsis but was left with lasting damage?
Yes — survivors with lasting damage can claim, and these are some of the most valuable sepsis cases. Long-term consequences such as amputations, kidney damage, chronic fatigue, cognitive problems or post-sepsis syndrome can all be compensated where negligence caused or worsened them. Your award reflects both the injury and your financial losses, including future care.
Who do I claim against for sepsis negligence?
You usually claim against the NHS trust or private provider responsible for the substandard care, not an individual doctor. NHS claims are handled by NHS Resolution on behalf of the trust; private treatment is covered by the clinician’s indemnity provider. Your solicitor identifies the correct defendant once the records are reviewed.
Will I have to go to court for a sepsis claim?
Most sepsis negligence claims settle without a trial. The majority are resolved through negotiation once the medical evidence is exchanged, and only a small minority reach a final court hearing. Even when proceedings are issued to protect the time limit, cases frequently settle before trial.
Think sepsis was missed or delayed in your care, or a loved one’s? May I Claim offers a free, no-obligation claim check. Tell us what happened and we will give you an honest view of whether you may have a claim — with no pressure and nothing to pay to find out. Start your free claim check today.
This article is general information about the law in England and Wales and is not legal advice. Compensation figures are indicative and depend on your individual circumstances and the current Judicial College Guidelines.
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Disclaimer: The compensation figures in this article are illustrative guideline brackets only and are not a guarantee of what any individual claim is worth. Every case is assessed on its own facts. mayiclaim is a trading name of R Costings Limited, which is authorised and regulated by the Financial Conduct Authority (FRN 836625). This article is general information and not legal advice.
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