Sepsis is a life-threatening overreaction to infection that can cause organ failure, amputation or death within hours. A negligence claim can arise where clinicians failed to recognise the red flags or to start the standard emergency treatment (the “Sepsis Six”) promptly, and that delay caused avoidable harm. You must prove both negligence (the Bolam/Bolitho standard) and causation. Value depends on the lasting injuries — from modest where recovery is full to very high where there is amputation, organ damage or death.
Sepsis kills tens of thousands of people in the UK every year, and many of those deaths and severe injuries are preventable with timely recognition and treatment. The tragedy of a sepsis claim is usually not that the illness was untreatable, but that simple, well-established steps were not taken quickly enough. This guide explains when a delay in diagnosing or treating sepsis may be negligent, and how these claims are assessed. It is information, not medical or legal advice.
What sepsis is
Sepsis arises when the body’s response to an infection injures its own tissues and organs. It can follow any infection — a chest or urine infection, an infected wound, pneumonia or meningitis — and it progresses rapidly. Early recognition and treatment dramatically improve survival, which is why the NHS and the UK Sepsis Trust promote tools to spot it fast. Left too long, sepsis causes septic shock, organ failure, tissue death requiring amputation, brain injury, and death.
Red flags and the Sepsis Six
Warning signs that should prompt urgent assessment include a very high or low temperature, fast heart rate and breathing, confusion or slurred speech, not passing urine, mottled or discoloured skin, and a feeling of being severely unwell. Where sepsis is suspected, the recognised emergency bundle — widely known as the Sepsis Six — is meant to be delivered within the first hour: give oxygen, take blood cultures, give intravenous antibiotics, give intravenous fluids, check lactate, and monitor urine output. A failure to escalate, to start antibiotics, or to act on a deteriorating patient is a common basis for claims.
When a delay is negligent
As with all clinical negligence, the test is Bolam as refined by Bolitho: did the care fall below the standard of a reasonably competent practitioner, in a way that withstands logical scrutiny? A claimant must also prove causation — that earlier recognition and treatment would have avoided some or all of the harm. Because sepsis deteriorates by the hour, causation experts often focus on what would have happened had antibiotics and fluids been started when the red flags first appeared. Common negligent failures include misattributing sepsis to a minor illness, discharging a deteriorating patient, and not following sepsis-screening protocols.
Proving the claim
A solicitor gathers the full records — including observation charts and timings, which are critical in a fast-moving illness — and instructs experts on breach of duty (often emergency or acute medicine) and causation (for example intensive care or microbiology). The three-year limitation period generally runs from the negligent care or your date of knowledge, with the usual exceptions for children, those lacking capacity, and fatal cases. Our medical negligence guide explains the process and NHS Resolution’s role.
How these claims are valued
Value tracks the lasting harm. Where someone recovers fully after a frightening but ultimately successful treatment, awards are modest. Where sepsis caused amputations, organ damage, brain injury or death, claims can be very high and include lifelong care, prosthetics, equipment, home adaptations and lost earnings. General damages are assessed against the Judicial College Guidelines brackets for the specific resulting injuries — for example the amputation brackets — combined with the financial losses. In fatal cases, the estate and dependants may claim; see our fatal claims guide. Model the structure with our compensation calculator; only a solicitor with expert evidence can value yours.
Frequently asked questions
Can I claim compensation for missed sepsis?
Possibly. Sepsis is an emergency with recognised red flags and a standard early-treatment bundle (the Sepsis Six). A claim can succeed where clinicians negligently failed to recognise or treat it promptly — missing the warning signs, not starting antibiotics, or discharging a deteriorating patient — and that delay caused avoidable harm such as organ damage, amputation or death.
How much is a sepsis negligence claim worth?
It depends on the lasting harm — from modest where someone fully recovers to very high where sepsis led to amputations, organ failure, brain injury or death with lifelong care needs. General damages are assessed against the Judicial College Guidelines for the specific injuries, plus financial losses.
What is the time limit for a sepsis claim?
Generally three years from the negligent treatment or your date of knowledge. In fatal cases a three-year period generally runs from the date of death. Children's time runs from their 18th birthday, and there is no limit while a person lacks capacity.
Who is responsible — the hospital or the GP?
It depends where the failure occurred — an NHS hospital trust, out-of-hours service, ambulance trust or GP practice. NHS claims are handled by NHS Resolution.
Related guides: medical negligence claims, cancer misdiagnosis, cauda equina claims, amputation & limb loss, fatal accident claims and all claim types.
Get help from official, free sources
- Solicitors Regulation Authority (SRA) — check a solicitor is regulated
- The Law Society — Find a Solicitor — accredited PI specialists
- Citizens Advice — free, impartial guidance on your rights
- GOV.UK — courts, time limits and the Official Injury Claim portal