Published
25th August 2026

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GPs are often the first point of contact if you are seeking medical advice. They work in a challenging environment, balancing limited consultation times, evolving medical guidance, and the need to identify serious conditions.

When concerns arise about your care, one of the first questions we consider is whether the GP acted reasonably in the circumstances at the time. Assessing this issue is central to determining whether a potential medical negligence claim may exist.

Assessing whether a GP acted reasonably is only one part of the legal picture. Before considering the specific legal tests that apply to medical negligence claims, it is important to understand what must be proven in order to bring a successful claim.

Not every mistake is negligence

Two competent GPs may reasonably reach different conclusions when faced with the same patient and symptoms. The legal test is therefore not whether another doctor might have acted differently, but whether the GP’s actions fell below the standard expected of a reasonably competent practitioner.

The courts have long recognised that clinical judgement involves professional discretion. As a result, medical negligence cases rely heavily on independent expert evidence to assess whether the treatment, diagnosis or management of a patient was reasonable.

What do you need to prove in a GP negligence claim?

Assessing whether a GP acted reasonably is an important part of any medical negligence claim, but it is not the only issue the court will consider.

To succeed in a claim, we must generally be able to establish four key elements:

  • A duty of care owed to you by the GP
  • A breach of that duty
  • Causation (the breach caused you injury or harm)
  • Damage (you suffered loss or injury)

While many focus on whether a mistake was made, a successful claim requires all four elements to be established. The question of whether a GP acted reasonably sits within the breach of duty stage of the legal analysis, where the court considers whether the care met acceptable professional standards.

The court assesses this issue using a number of well-established legal principles, most notably those set out in Bolam and Bolitho.

The legal tests used to assess a GP’s care

When assessing a potential medical negligence claim, we review the relevant medical records, consider the decisions made by the GP and obtain independent expert evidence. We then assess the care provided against the legal principles established by Bolam and Bolitho.

Applying the Bolam test to a GP’s actions

When considering whether a GP has breached their duty of care, the starting point is Bolam v Friern Hospital Management Committee [1957], commonly known as the Bolam test.

In simple terms, a GP will not usually be considered negligent if their actions were supported by a responsible body of medical opinion. The law recognises that medicine is not always clear cut and that different doctors may reasonably take different approaches to the same clinical problem.

For example, as a patient you may later be referred to a specialist and diagnosed with a condition that requires treatment. You may feel that referral should have happened sooner. However, the key question is not whether another GP might have acted differently, but whether the decision made at the time was one that a reasonably competent GP could have made.

When investigating a potential claim, we will often consider questions such as:

  • Would a reasonably competent GP have acted in the same way?
  • Was your condition assessed appropriately?
  • Were the symptoms investigated properly?
  • Should you have been referred for further tests or specialist treatment?
  • Were your test results reviewed and acted upon correctly?
  • Did the GP respond appropriately to any warning signs or developing symptoms?

Importantly, the fact that another GP may have reached a different diagnosis or chosen a different treatment plan does not automatically mean negligence has occurred.

However, the court will not simply accept a medical opinion without question. This is where the Bolitho test becomes important.

Assessing medical opinion under the Bolitho test

In Bolitho v City and Hackney Health Authority [1998], the courts made it clear that they are not required to accept a medical opinion because some doctors support it. Instead, the opinion must also be capable of withstanding logical scrutiny.

This means that if expert evidence is put forward to support a GP’s actions, the court can examine whether that opinion is reasonable, evidence-based and supported by sound clinical reasoning.

For example, a GP may argue that a patient’s symptoms did not justify further investigation or referral. Although some medical professionals may support that approach, the court can consider whether the opinion is logically defensible in light of the patient’s symptoms, medical history and overall clinical picture.

An important safeguard for patients

For patients, the Bolitho test provides an important safeguard. It means that a GP cannot avoid criticism simply because another doctor agrees with their decision. The court can look at the reasoning behind that decision and assess whether it stands up to careful examination.

Causation and whether the GP’s actions caused avoidable harm

Showing that a GP made a mistake is only part of a medical negligence claim.

Even if the care you received fell below the standard expected of a reasonably competent GP, it must also be shown that the failing caused avoidable harm. This legal principle is known as causation and is often one of the most important issues in a claim.

For example, a GP may have negligently delayed a diagnosis. However, if medical evidence shows that your outcome would have been the same even with an earlier diagnosis, a claim may not succeed.

In other words, it is not enough to show that something went wrong. It must also be shown that the mistake made a meaningful difference to your condition, treatment options or long-term outcome.

This is why independent medical evidence plays such an important role in medical negligence claims. It helps establish not only whether the care fell below an acceptable standard, but also whether that failing caused avoidable harm.

What does this mean for you?

If you are thinking about making a medical negligence claim, it is important to understand that an unexpected or poor outcome does not automatically mean your GP was negligent.

To bring a successful claim, it must be shown that the care you received fell below the standard expected of a reasonably competent GP and that this caused you avoidable harm.

To assess this, the court will look at the information available to the GP at the time, including your symptoms, medical history and any test results. It will then consider whether different steps should reasonably have been taken, such as arranging further investigations or making an earlier referral.

This means that a claim may arise where opportunities to diagnose or treat a condition sooner were missed, even if the correct diagnosis was eventually made. Equally, not every delayed or incorrect diagnosis will amount to medical negligence.

The key question is whether different care would have been likely to make a difference to your condition, treatment options or overall outcome.

Why expert evidence matters

Independent expert evidence is central to most medical negligence claims. Experts review the available evidence and provide an opinion on two key questions:

  • Did your GP’s care fall below an acceptable professional standard?
  • If so, did that failing cause you avoidable harm?

In reaching their conclusions, experts may consider:

  • GP consultation records
  • Referral correspondence
  • Test results
  • Prescribing records
  • Relevant national guidance
  • Your symptoms and medical history

Their evidence helps the court assess both breach of duty and causation. Following Bolitho, however, an expert opinion must do more than support a particular position. It must also be based on clear reasoning and capable of withstanding scrutiny.

A balanced approach

Together, Bolam and Bolitho ensure that GPs are judged fairly while maintaining accountability where standards of care are not met. The law recognises that reasonable clinicians may disagree, but it also requires medical opinions to be capable of logical justification.

Conclusion

Assessing whether a GP has acted reasonably is rarely straightforward. General practice requires clinicians to make complex decisions, often within limited consultation times and based on symptoms that may be vague or non-specific.

The law seeks to strike a careful balance. It recognises that medicine is not an exact science and protects healthcare professionals where reasonable practitioners could legitimately differ in their approach. At the same time, it provides an important safeguard for you by requiring that clinical decisions are supported by responsible medical practice and capable of being logically justified.

Ultimately, the key question is not whether the outcome was good or bad, or whether another doctor might have acted differently. The question is whether your GP’s actions were reasonable in the circumstances that existed at the time and, if they were not, whether that failing caused avoidable harm.

These principles continue to underpin the assessment of GP negligence claims and help ensure both fairness for healthcare professionals and accountability where standards of care have fallen below what patients are entitled to expect.

Contact our GP negligence solicitors today

If you have suffered due to a delayed diagnosis, misdiagnosis or other errors in your GP’s care, our specialist medical negligence soliciors can help you understand your options. Call us free on 0333 252 7228, or contact us for a call back.   

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About the Author

James Anderson
James Anderson

Head of Medical Negligence West Midlands

James joined the Clinical Negligence Team at Lime in 2013 as a Paralegal. He gained a Training Contract with the firm in 2015 and qualified in March 2017. He was promoted to Associate in 2020, Legal Director in 2022 and Partner in May 2024. He is a Team Leader and head of the Birmingham Medical Negligence team, supervising five other Fee Earners. He manages a large caseload and deals with the full spectrum of medical negligence clams including, but not limited to; catastrophic birth injury claims, brain injury claims for adults and children, spinal injury claims, surgical errors, GP negligence,…