Patients are entitled to expect that treatment provided by the NHS will meet an appropriate standard. When something goes wrong, it is not always immediately clear whether the outcome was unavoidable or whether it resulted from substandard care. This uncertainty often gives rise to the question of whether the circumstances amount to clinical negligence and whether a claim may be pursued against the NHS.

Clinical negligence is a complex area of law. It involves careful analysis of the care provided, the decisions taken by healthcare professionals, and the impact those decisions had on the patient’s outcome. Not every adverse outcome will give rise to a claim, even where the consequences are serious.

Understanding what must be proved is an important starting point.

What is meant by clinical negligence?

Clinical negligence arises where a healthcare professional breaches their duty of care to a patient and that breach causes injury or harm. A duty of care is owed by NHS trusts and individual clinicians, including doctors, nurses, midwives and other healthcare professionals involved in a patient’s treatment.

The law does not require healthcare professionals to provide perfect care. The standard is whether the care fell below that which could reasonably be expected from a responsible body of medical professionals acting in the same circumstances.

The legal framework is well established, but its application depends entirely on the facts of each case.

The requirement to prove breach of duty

The first element of any clinical negligence claim is breach of duty. This involves assessing whether the care provided was reasonable. The court does not determine this question based on hindsight or personal opinion. Instead, it relies on independent expert evidence from clinicians working in the relevant field.

Expert evidence is used to determine whether the actions or omissions complained of would be supported by a responsible body of medical opinion. This can involve consideration of national guidelines, local policies, accepted practice at the relevant time, and the specific clinical context.

Examples of potential breaches of duty include failure to recognise or act upon abnormal symptoms, delayed referral to a specialist, failure to investigate appropriately, errors in treatment or surgery, inadequate monitoring, or failure to follow accepted protocols.

It is important to note that a difference of opinion between clinicians does not necessarily amount to negligence. There must be evidence that the care fell outside the range of reasonable practice.

The requirement to prove causation

Even where breach of duty can be established, a claim will only succeed if causation can also be proved. This means showing that the negligent care caused the injury or materially contributed to it.

Causation is often the most difficult aspect of a clinical negligence claim. The question is not simply whether the care was substandard, but whether different care would probably have led to a better outcome.

In some cases, earlier diagnosis or treatment would have avoided injury altogether. In others, it may have reduced the severity of harm or improved prognosis. In more complex cases, the underlying condition may have carried a poor outlook regardless of negligence, making causation harder to establish.

Expert evidence is again crucial in determining whether the outcome would have been materially different with appropriate care.

Common scenarios that give rise to claims

Clinical negligence claims against the NHS arise in a wide range of clinical settings. Common areas include delayed or missed diagnosis of serious conditions such as cancer or sepsis, failure to escalate deteriorating patients, surgical errors, medication mistakes, and failures in maternity care.

Claims may arise from acts or omissions. For example, failing to act on abnormal test results or failing to review a patient when their condition changes can be just as significant as an incorrect treatment decision.

In some cases, a series of relatively minor failures, when considered together, may amount to negligence even if no single act would do so in isolation.

Distinguishing negligence from an unfortunate outcome

A key issue for many patients is distinguishing between negligence and an unfortunate outcome. Medical treatment carries inherent risks, and complications can arise even when care is appropriate and timely.

The law does not compensate patients simply because treatment was unsuccessful. The focus is on whether the care fell below an acceptable standard and whether that failure caused avoidable harm.

This distinction is often difficult for patients to assess without access to medical records and expert opinion. As a result, concerns about negligence should not be dismissed simply because clinicians have explained that complications can occur.

Time limits for bringing a claim

Clinical negligence claims are subject to strict limitation periods. In most cases, proceedings must be issued within three years of the date of the negligent treatment or the date when the patient first knew, or ought reasonably to have known, that their injury was attributable to negligent care.

Different rules apply in cases involving children, where time does not begin to run until the child reaches adulthood, and for individuals who lack mental capacity.

Determining the correct limitation date can be complex, particularly in cases involving delayed diagnosis or gradual deterioration. Delay can also affect the quality of evidence available, so early consideration of limitation issues is important.

The role of medical records and expert evidence

Medical records form the backbone of any clinical negligence investigation. These records provide a contemporaneous account of what was done, what was observed, and what decisions were made.

Once records are obtained, independent experts are instructed to review the care provided. Experts must be appropriately qualified and experienced in the relevant specialty. Their role is to assist in determining whether the legal tests for breach of duty and causation are met.

Without supportive expert evidence, a clinical negligence claim becomes difficult to proceed.

What steps can be taken if negligence is suspected?

Where a patient believes that NHS care may have caused avoidable harm, the first step is usually to obtain specialist legal advice. A solicitor experienced in clinical negligence can assess the available information, advise on whether further investigation is warranted, and explain the likely process.

This assessment often takes place before any formal complaint or legal action is pursued, as the legal test for negligence differs from the complaints process.

Clinical negligence claims can be lengthy and demanding, requiring careful preparation and expert input. Understanding whether the legal criteria are likely to be satisfied at an early stage can assist patients in making informed decisions about how to proceed.

How we can help

If you are concerned that you or a family member may have suffered harm as a result of negligent NHS treatment, we can provide specialist advice on whether the circumstances give rise to a potential clinical negligence claim.

We regularly advise clients on claims involving delayed diagnosis, failures in hospital care, surgical errors, maternity care concerns and other forms of clinical negligence. An initial discussion allows us to consider the background, explain the legal principles that apply, and advise on the next steps, including funding options where appropriate.

If you would like to discuss your concerns in confidence, please contact us to arrange an initial consultation.