Two things have to be proved, and they are separate

A medical negligence claim is not a claim that something went wrong. Medicine carries risk, and a bad outcome is not by itself evidence of anything. A claim requires two distinct things to be established, and they fail independently of each other.

The first is breach of duty: that the care given fell below the standard the law requires of a doctor, nurse, dentist or other clinician in that field. The second is causation: that the failure made a difference, and that the harm complained of would probably not have happened, or would have been materially less, had the care been adequate. A pursuer who proves the first and not the second has proved that the treatment was negligent and recovers nothing.

Both have to be proved on the balance of probabilities, and both normally have to be supported by an independent expert in the same speciality. This is why these claims take longer and cost more to investigate than almost any other kind of injury claim, and why a solicitor will not tell you at the first meeting whether you have one.

The test Scotland applies

The standard of care in Scotland comes from Hunter v Hanley, decided by the First Division of the Court of Session in 1955 and reported at 1955 SC 200, with the relevant passage at page 206. It is cited that way and no other. A case of that date has no neutral citation, and could not have one, because neutral citations were not introduced in the Scottish courts until decades later. Any page offering you a neutral citation for Hunter v Hanley has invented it.

The test set out there has three parts, and a pursuer must establish all three. It must be proved that there was a usual and normal practice; that the doctor did not adopt that practice; and, most demanding of all, that the course the doctor took was one which no professional of ordinary skill would have taken if acting with ordinary care. The third limb is what makes these claims hard. It is not enough to show that another competent doctor would have done something different, or even that most of them would have. A genuine difference of professional opinion is not negligence.

The Supreme Court restated that test in Scottish terms as recently as 2023, in McCulloch v Forth Valley Health Board [2023] UKSC 26, so it is not a historical curiosity. It is the live law.

Whether Bolam applies in Scotland

A great many Scottish websites assert that “Bolam does not apply in Scotland”. In the form it is usually put, that is wrong, and it matters because people rely on it.

What is true is that Scotland has its own authority and does not need to borrow an English one. What is not true is that the two tests are different in substance. In McCulloch v Forth Valley Health Board the Supreme Court held, at paragraph 56, that the correct legal test for deciding what counts as a reasonable alternative treatment is “the professional practice test found in Hunter v Hanley and Bolam” — treating the two as a single standard, expressed in each jurisdiction by its own case. At paragraph 66 the court described the identification of reasonable treatment options as a matter of professional skill and judgment to which that same professional practice test applies.

So the useful statement is narrower and more accurate. Scotland applies Hunter v Hanley. It is the same professional practice standard the English courts reach through Bolam. And it does not govern the separate question of what a patient should have been told, which is dealt with next.

Where the complaint is that you were not told

There is a second route, and it is a different test. It applies where the treatment itself was competently performed but the patient was not warned of a risk, or was not offered a choice.

The governing case is Montgomery v Lanarkshire Health Board [2015] UKSC 11, decided on 11th March 2015. It was a Scottish appeal, from the Court of Session, and it changed the law of consent across the United Kingdom. At paragraph 87 the Supreme Court held that “the doctor is therefore under a duty to take reasonable care to ensure that the patient is aware of any material risks involved in any recommended treatment, and of any reasonable alternative or variant treatments”. Whether a risk is material is judged by reference to what this particular patient would attach significance to, not by what a body of doctors would have disclosed.

McCulloch v Forth Valley Health Board then answered the question Montgomery had left open, and it is the point most sites get wrong. The duty to inform bites only on reasonable alternative treatments. Deciding which of the possible treatments are reasonable is a clinical judgment, governed by the professional practice test in Hunter v Hanley. Only once a treatment passes that filter does the Montgomery duty to explain it engage. A doctor who reasonably concluded that a particular option was not a reasonable alternative for this patient is not negligent for having failed to mention it.

Causation, which is where most claims end

Causation is the harder half of almost every medical negligence claim, and it is worth understanding before you invest years in one.

The question is not whether the care was poor. It is whether the poor care changed the outcome. In a delayed diagnosis case, the pursuer has to prove that earlier diagnosis would probably have led to a materially better result — that the cancer was curable at the earlier stage, that the operation would have succeeded, that the damage would have been avoided or reduced. Where the underlying condition was going to cause the same harm anyway, there is negligence but no claim.

In a consent case the question is different again, and personal. The pursuer must prove that, had the risk been explained, she would have made a different decision. That is a question about what this patient would have done, and it is examined closely.

Who you are actually claiming against

This is where Scotland diverges most sharply from England, and where English guidance actively misleads.

Hospital and community NHS treatment. The defender is the health board itself. Health boards are constituted by order under section 2 of the National Health Service (Scotland) Act 1978, and that order specifies the name by which the board is to be known. The action is raised against the board under that statutory name — which is why the two leading Supreme Court cases in this field are called Montgomery v Lanarkshire Health Board and McCulloch v Forth Valley Health Board, and not “NHS Lanarkshire” or “NHS Forth Valley”. There is no NHS Resolution in Scotland and no equivalent national defendant. Boards are indemnified through the Clinical Negligence and Other Risks Indemnity Scheme, and claims are handled by the Central Legal Office of NHS National Services Scotland. This is set out in more detail on claiming against the NHS in Scotland.

General practice. This is the genuine Scottish difference, and it is not academic. General practitioners are independent contractors, and they are not covered by the health board indemnity scheme: NHS National Services Scotland records that indemnity for general practice is not the responsibility of the NHS body and that medical defence cover is appropriate instead. Nor is there a state-backed indemnity scheme for general practice in Scotland of the kind introduced elsewhere in the United Kingdom in 2019. Checked and correct as at 15th August 2026. In practice, a claim arising from Scottish general practice is met by the doctor’s medical defence organisation, not by the Central Legal Office, and the correspondence, the pace and the negotiating position are all different as a result.

Private treatment. The claim lies against the clinic or the practitioner, and often in contract as well as in delict. Independent healthcare services in Scotland are regulated by Healthcare Improvement Scotland, not by the health board, and a complaint about a private clinic goes there rather than to the NHS complaints procedure.

Three years, and when the three years start

The limit is three years, set by section 17 of the Prescription and Limitation (Scotland) Act 1973. The Limitation Act 1980, which governs England and appears on most of the pages that rank for these searches, has nothing to do with Scotland.

The three years run from the injury or, if later, from the date on which the injured person first knew, or could reasonably have found out, that the injury was serious enough to justify an action, that it was attributable to an act or omission, and who was responsible. Nonage in Scotland ends at sixteen, not eighteen, so a child’s own claim ordinarily expires at nineteen, and time does not run at all while capacity is lost. Section 19A allows a court to admit a late action where it seems equitable, but it is a contested application rather than a safety net, and an action admitted under it cannot be tried by jury. Making a complaint does not pause any of this.

The start date is the issue that decides most of these cases, and it is set out in full on medical negligence time limits in Scotland.

When it is not a personal injury claim at all

A small number of claims about medical care are not claims for personal injury, and they run on an entirely different timetable. The obvious example is private treatment which produced no injury but did not produce what was paid for: a claim for the cost of putting it right, or for the fee itself. Obligations to make reparation for personal injuries are carved out of the prescription regime altogether — out of the five-year period by paragraph 2(g) of Schedule 1 to the 1973 Act, and out of the twenty-year period by section 7(2), but a claim with no personal injury in it is not carved out, and prescription applies instead of limitation.

That means five years, running from awareness of loss, of the act or omission that caused it, and of who was responsible — and, importantly, section 11(3B) provides expressly that it does not matter whether you were aware the conduct was actionable in law. There is a twenty-year long stop that runs from the act or omission itself, or, where the act or omission was a continuing one, from the date it ceased, whatever you knew. That start point is fixed by section 11(4) of the 1973 Act, substituted by section 8 of the Prescription (Scotland) Act 2018 with effect from 28th February 2025 under regulation 2(1) of SSI 2022/78. The parties may agree a single standstill extension of no more than one year.

The distinction matters more than it sounds. Where a claim has both elements — injury and a separate financial loss — the two can be on different clocks. That is a question to put to a solicitor early rather than late.

Complaining and claiming are different things

Most people who believe something went wrong want two things that the law treats separately: an explanation, and compensation. The complaints procedure delivers the first and cannot deliver the second. A court action delivers the second and is a poor way of getting the first.

The NHS Scotland complaints procedure has two stages, and if it does not resolve matters the next step is the Scottish Public Services Ombudsman. The Ombudsman investigates, makes findings and makes recommendations. It does not award damages. There is also a jurisdictional limit that is rarely explained: section 7(8) of the Scottish Public Services Ombudsman Act 2002 provides that the Ombudsman must not investigate a matter for which the person aggrieved has or had a remedy by way of proceedings in a court of law, unless satisfied that it is not reasonable to expect them to have resorted to it. Where a claim is genuinely available, the Ombudsman is not the route to it.

The complaints route, the time limits attached to it and what the Ombudsman can and cannot do are set out in full on how to complain about NHS treatment in Scotland. Read it before deciding which route you are on. Many people should be on both.

The duty of candour, and what it is not

Scotland has a statutory organisational duty of candour, under Part 2 of the Health (Tobacco, Nicotine etc. and Care) (Scotland) Act 2016, with the detail in the Duty of Candour Procedure (Scotland) Regulations 2018. It is triggered where an unintended or unexpected incident in the provision of care appears to have resulted in one of a defined list of outcomes, including death and severe harm, as determined by a registered health professional who was not involved in the incident.

Where it applies, the organisation must tell the person affected, give an account of what is known, offer a written apology if one is wanted, offer a meeting, carry out a review and produce a written report, and account for all of it in an annual report. NHS boards separately review adverse events under a national framework published by Healthcare Improvement Scotland in February 2025.

Three things it is not. It is a duty on the organisation, not on the individual clinician standing in front of you. It decides nothing about negligence — Part 2 of the 2016 Act provides that an apology, or any other step taken in compliance with the duty, does not of itself amount to an admission of negligence or of breach of a statutory duty. And it confers no right to compensation. It is, however, often the first document that tells a family what actually happened, and it is worth having.

Paying for it, and the Scottish advantage

Legal aid is available. This is the largest single practical difference from England, where public funding for clinical negligence was withdrawn for all but a narrow category. Civil legal aid in Scotland is not available for certain excepted proceedings listed in Part II of Schedule 2 to the Legal Aid (Scotland) Act 1986 — defamation and verbal injury, election petitions, simplified divorce applications and debtor sequestration petitions among them. Clinical negligence appears nowhere on that list, and neither does personal injury. The Scottish Legal Aid Board maintains a medical negligence category in its solicitor finder, which listed 140 firms when checked on 15th August 2026. Legal aid is means tested and merits tested, and a contribution is common, but it exists. See legal aid in Scotland.

No win no fee. Success fees in Scotland are capped by regulation on a sliding scale, and the cap includes VAT. In an injury claim the agreement must also provide that you pay nothing beyond the success fee, including outlays, whatever the outcome. See what no win no fee actually means in Scotland and what your solicitor can take from your compensation.

If you lose. Qualified one-way costs shifting applies, because these are personal injury actions. Under section 8 of the Civil Litigation (Expenses and Group Proceedings) (Scotland) Act 2018, in force since 30th June 2021, the court must not award expenses against a pursuer who has conducted the proceedings appropriately. The exceptions are narrow and are set out on what happens if I lose my case.

No compulsory pre-action protocol. Scotland’s compulsory personal injury pre-action protocol, made by Act of Sederunt in 2016, expressly excludes claims arising from alleged clinical negligence, at paragraph 1(d)(i) of the protocol, along with professional negligence and disease. There is therefore no fixed timetable, no fixed fee and no prescribed sequence of letters in a medical negligence claim. That is a mixed blessing: it allows a claim to be investigated properly, and it removes any pressure on the other side to move quickly.

If someone has died

Where a person has died as a result of negligent treatment, two kinds of claim can arise. The rights the deceased had, including for pain and suffering before death, transmit to the executor. Separately, certain relatives have claims of their own, including for loss of support and for the distress and grief of the bereavement. Both are governed by the Damages (Scotland) Act 2011, which defines who counts as a relative and what each may recover. Awards under that Act are assessed by Scottish courts on Scottish authority. Figures published for use in England, including the Judicial College Guidelines, are not the measure here.

There may also be a Fatal Accident Inquiry. An inquiry establishes facts and makes recommendations. Like a complaint, it decides nothing about liability, and it does not stop the three years running.

The particular kinds of claim

Every claim below is decided on the same two questions — breach of duty and causation — but the evidence, the experts and the practicalities differ considerably.

What to do now, in order

Write down the dates while you still remember them. When the treatment happened, when you first suspected something had gone wrong, and what was said to you and by whom. The date of knowledge is a live issue in a great many of these claims, and a contemporaneous note is worth a great deal more than a recollection three years later.

Ask for your records. You are entitled to a copy of your health records. Ask the board or the practice in writing. Records take time to arrive and no expert can begin without them.

Take advice early, and do not wait for the complaint to finish. The complaint and the claim can run alongside each other, and the three years do not pause for either. If you are close to the limit, say so at the first contact.

Expect the investigation to be slow, and expect it to be honest with you. A solicitor who tells you at the outset that you have a strong claim, before any records have been read or any expert instructed, is not in a position to know.