GMC consent requirements, the Montgomery ruling, common consent failures that lead to investigation, possible sanctions, and how to demonstrate improved practice
Consent failures are a significant and growing source of GMC fitness to practise complaints. The Montgomery ruling changed the legal standard — and the GMC has fully adopted the patient-centred approach to disclosure it established. This guide explains what the GMC expects, what consent failures look like in practice, and what remediation evidence makes the difference.
Valid consent is a cornerstone of lawful and ethical medical practice. GMC Good Medical Practice requires doctors to work in partnership with patients and respect their right to make decisions about their care.
This means providing the information patients need to make those decisions effectively — including risks, benefits, and alternatives.
The GMC's consent guidance sets out the requirements for a valid consent process. Consent must be voluntary — given freely without undue pressure. It must be informed —
the patient must have received sufficient information about the proposed treatment, its risks and benefits, and the available alternatives. And it must be given by a person with the capacity to make the decision.
Documentation is an integral part of the consent process — not merely an administrative requirement. A consent form without a documented consent discussion is not evidence of valid consent. The clinical record should show that the conversation took place, what was discussed, and that the patient had the opportunity to ask questions.
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Consent failures that reach the GMC take many forms. The most frequently encountered categories are:
A broader guide to informed consent in healthcare provides the regulatory context that applies across all healthcare professions.
The Supreme Court's judgment in Montgomery v Lanarkshire Health Board [2015] UKSC 11 fundamentally changed the legal standard for consent in the UK.
Before Montgomery, the standard for disclosure was set by what a responsible body of medical opinion would disclose. After Montgomery, the standard is what a reasonable patient in the claimant's position would want to know.
The shift is significant: it places patient autonomy at the centre of the consent process and removes the clinical profession's traditional latitude to determine what information is "relevant" to disclosure. Montgomery also established that doctors must disclose alternatives, including the option of doing nothing.
The GMC adopted the Montgomery standard into its consent guidance. A doctor who fails to disclose a material risk — one that a reasonable patient in the specific circumstances would want to know about —
is not meeting GMC Good Medical Practice standards, regardless of what a body of medical opinion might consider appropriate. This means that in consent-related GMC investigations, the patient's perspective on what they would have wanted to know is central to the assessment.
Consent complaints most commonly originate from patients who have experienced an adverse outcome and believe they were not adequately informed of the relevant risks beforehand. They may also arise from clinical governance processes where inadequate consent has been identified as a contributing factor in an incident review.
The GMC investigation gathers the clinical records relevant to the consent process — the consent form, the clinical notes from the consultation at which consent was discussed, any information leaflets provided, and the operative notes.
An independent clinical expert is typically appointed to assess whether the consent process met the required standard.
The case examiners then review the file including the doctor's Rule 7 response and the expert report.
Where the consent failure was isolated and the doctor has demonstrated genuine insight, an agreed outcome is achievable.
Where the failure was systemic, caused serious harm, or where the doctor's response has been defensive rather than reflective, referral to tribunal is more likely.
The range of GMC sanctions for consent failures reflects the wide spectrum of conduct involved — from a single documentation lapse to systematic failures in the consent process causing serious patient harm.
Remediation in a consent case must show that the doctor now understands the Montgomery standard, what was lacking in the original consent process, and how their practice has genuinely changed.
An effective consent remediation file includes:
The guide to demonstrating insight to the GMC sets out the broader framework for insight evidence that applies equally to consent-related cases.
The Montgomery standard applies across UK jurisdictions. For overseas-qualified doctors, consent standards may differ from those in home jurisdictions — understanding the UK standard from the outset is essential.
UK-registered doctors can access professional ethics training through Healthcare Ethics Courses.
Doctors with connections to Australia can consult ethics training for Australian doctors.
Those with connections to New Zealand can review professional development for New Zealand doctors.
10 CPD-certified courses for £500. Consent, patient autonomy, and ethics CPD — completed early and documented properly as part of a genuine remediation response.
Bulk Buy 10 Courses →Valid consent must be voluntary, informed, and given by a person with capacity. The information standard follows the Montgomery ruling: doctors must disclose material risks — those a reasonable patient in the specific circumstances would want to know about — as well as relevant alternatives including the option to decline treatment.
Montgomery v Lanarkshire Health Board [2015] UKSC 11 established that the test for consent disclosure is patient-centred — what a reasonable patient would want to know — not clinician-centred. The GMC adopted the Montgomery standard. A doctor who fails to disclose a material risk, even if other doctors might not have disclosed it, is not meeting GMC standards.
Failure to disclose material risks, failure to discuss alternatives, inadequate documentation of the consent process, consent obtained under pressure or without adequate time for reflection, proceeding without valid consent in a patient lacking capacity, and failing to revisit consent where the procedure has significantly changed.
Yes. Serious or repeated consent failures — particularly where significant patient harm resulted — can result in suspension. Erasure is possible in the most serious cases. Isolated consent failures with genuine insight are more likely to result in a warning, undertakings, or agreed outcome.
A contemporaneous clinical record of the consent discussion — what risks were disclosed, what alternatives were discussed, what questions the patient asked, and that the patient had time to reflect. A completed consent form without a documented discussion is not sufficient evidence of valid consent.
A risk that a reasonable patient in the specific circumstances of the case would want to know about before deciding whether to proceed. This is a patient-centred test — not a clinician-centred one. Small statistical risks can be material if they would matter to a particular patient. The doctor must consider what this patient, in their circumstances, would want to know.
Yes. Where the consent failure was isolated, the doctor demonstrates genuine insight, and meaningful remediation has been undertaken, an agreed outcome — undertakings or a warning — is achievable without tribunal proceedings.
Courses specifically addressing informed consent, the Montgomery standard, patient autonomy, and consent documentation. Completing these early and including certificates in the remediation file demonstrates genuine engagement. A consent audit showing improved practice adds significant weight.
Yes. Montgomery applies to all registered medical practitioners in the UK. The GMC's consent guidance incorporates the Montgomery standard. The same patient-centred test for material risk disclosure applies in primary care, secondary care, and all clinical settings.
Clinical records are the primary evidence. Where records are inadequate, the doctor is at a significant disadvantage. Going forward, ensuring all consent discussions are documented contemporaneously — with specific reference to risks disclosed and alternatives discussed — is the essential practice change.
Usually as a clinical performance concern — but where the failure was deliberate, repeated, or accompanied by dishonest record-keeping, it can move into the conduct stream. The GMC's assessment depends on the nature of the failure, the doctor's response, and the harm caused.
A review of a defined sample of consent processes against specified criteria — risks disclosed, alternatives discussed, documentation standard met. In a GMC consent case, an audit demonstrating that current practice meets the Montgomery standard provides independent evidence that practice has genuinely improved.
Using the Mental Capacity Act 2005 framework. A patient is assumed to have capacity unless the contrary is established. Capacity is decision-specific and time-specific. Where a patient lacked capacity, the doctor must demonstrate that a proper best interests assessment was conducted and documented, involving appropriate decision-makers.
This guide is for educational purposes only and does not constitute legal advice. If you are facing a GMC consent-related investigation, seek independent legal advice from a solicitor experienced in GMC regulatory proceedings.
