When endometriosis and pregnancy risk are not explained: does a failure to counsel give rise to a medical negligence claim in NSW?

That account is not unusual. For many women in Australia, endometriosis is diagnosed late — sometimes after a decade of dismissed symptoms, sometimes only after a pregnancy complication forces the issue. The question this article addresses is not whether that experience is common. It is. The question is whether the law has anything to say about it.

The answer, in NSW, is yes — and the legal analysis is more specific than most people expect.

What endometriosis is and how it should be managed

Endometriosis is a chronic condition in which tissue similar to the lining of the uterus grows outside the uterus — on the ovaries, fallopian tubes, pelvic peritoneum, and in severe cases on the bowel, bladder, and other structures.^[1] That tissue responds to hormonal cycles the same way the uterine lining does: it thickens, breaks down, and bleeds. Unlike the uterine lining, it has nowhere to go. The result is inflammation, scarring, and adhesions — bands of fibrous tissue that can distort pelvic anatomy and impair organ function.

According to Healthdirect Australia, endometriosis affects approximately one in nine Australian women of reproductive age — roughly 830,000 people.^[2] Despite that prevalence, the average time from first symptom to confirmed diagnosis in Australia has historically been between seven and ten years.^[3] That delay is not accidental. It reflects a consistent pattern of symptom normalisation, misattribution to other conditions, and inadequate investigation at the primary care level.

Standard clinical management of endometriosis involves several distinct stages. At the diagnostic stage, a clinician who identifies symptoms consistent with endometriosis — dysmenorrhoea (painful periods), dyspareunia (pain during intercourse), chronic pelvic pain, and subfertility — should refer for specialist gynaecological assessment. Definitive diagnosis requires laparoscopy, a surgical procedure that allows direct visualisation of endometrial lesions. Ultrasound can identify endometriomas (ovarian cysts caused by endometriosis) but cannot exclude the condition.

Once diagnosed, management depends on the patient’s symptoms, the severity of disease, and her reproductive intentions. Options include hormonal suppression, surgical excision of lesions, and — where fertility is a concern — early referral to a reproductive specialist. Critically, management does not end at diagnosis. A clinician who diagnoses endometriosis carries an ongoing obligation to counsel the patient about what that diagnosis means for her reproductive health.

The standard of care — what clinicians are required to do

In law, the “standard of care” is the benchmark against which a clinician’s conduct is measured. It asks: what would a reasonably competent clinician in this specialty, with this patient’s presentation, have done? The standard is objective. It does not ask what this particular clinician intended, believed, or was trained to do at their specific institution. It asks what the profession requires.

For endometriosis and pregnancy risk, the standard of care operates at several distinct clinical decision points. Each one carries its own obligation.

At the point of diagnosis

A gynaecologist who confirms endometriosis by laparoscopy must counsel the patient about the implications for fertility. That counselling must be specific: endometriosis is associated with reduced ovarian reserve, impaired tubal function, and — depending on disease location and severity — significantly elevated risk of ectopic pregnancy.^[4] A clinician who hands a patient a diagnosis and sends her home without that conversation has not met the standard.

At the point of pre-conception planning

A GP or gynaecologist managing a patient with known endometriosis who is planning a pregnancy must address the reproductive implications proactively. That means discussing the potential impact on fertility, the elevated risk of ectopic pregnancy, and — where the patient has deep infiltrating endometriosis or significant tubal involvement — the need for early referral to a reproductive endocrinologist or fertility specialist. Waiting for the patient to raise these questions is not sufficient. The obligation to disclose material risks rests with the clinician, not the patient.

The High Court of Australia confirmed this principle in Rogers v Whitaker (1992) 175 CLR 479.^[5] The Court held that a clinician must warn a patient of any material risk — meaning any risk that a reasonable person in the patient’s position would want to know about, or any risk the clinician knows this particular patient would consider significant. For a woman with endometriosis who is planning a pregnancy, the risk of ectopic pregnancy is unambiguously material. So is the risk of subfertility. A clinician who fails to disclose those risks has breached the duty of informed consent.

At the point of confirmed pregnancy

Once a patient with known endometriosis becomes pregnant, the standard of care requires early confirmation of intrauterine pregnancy location. An ectopic pregnancy — one implanted outside the uterus, most commonly in a fallopian tube — is a life-threatening emergency. Women with endometriosis face a significantly elevated risk of ectopic pregnancy compared to the general population, particularly where the condition has caused tubal scarring or adhesions.^[6] RANZCOG’s guidance is explicit: early transvaginal ultrasound to confirm intrauterine location is required in this patient group.

A clinician who knows a patient has endometriosis and does not arrange early pregnancy ultrasound — or who dismisses early pregnancy symptoms without considering ectopic pregnancy — has failed to apply the standard the guideline requires.

Where care breaks down — specific failure patterns

Endometriosis-related negligence does not follow a single pattern. Three distinct failure modes appear consistently in the clinical and legal record. Each one operates at a different point in the care pathway, and each one produces a different category of harm.

Failure to diagnose — the normalisation of pain

The most common failure is the earliest one. A GP sees a young woman with painful periods and chronic pelvic pain. The clinician attributes the symptoms to primary dysmenorrhoea — painful periods without an underlying cause — and prescribes the oral contraceptive pill. No referral to a gynaecologist follows. The patient returns six months later. The same assessment is made. Another prescription is written.

Years pass. The pain worsens. Intercourse becomes painful. The patient begins to notice that conception is not happening as expected. Only then does a referral occur — and only then does a laparoscopy reveal Stage III or Stage IV endometriosis, with bilateral tubal involvement and reduced ovarian reserve.

She went to her GP every year for seven years. Nobody ordered a pelvic ultrasound. Nobody referred her to a gynaecologist. By the time anyone looked, the damage was done.

The mechanism behind this failure is well-documented. Menstrual pain is culturally normalised in ways that other chronic pain is not. Clinicians — including experienced GPs — frequently underestimate the severity of endometriosis-related pain because patients have been conditioned to minimise it. The Australian Commission on Safety and Quality in Health Care has identified the normalisation of women’s pain as a systemic barrier to timely diagnosis across multiple conditions, including endometriosis.^[7]

Demographic factors compound this. Research consistently shows that younger patients, patients from culturally and linguistically diverse backgrounds, and patients who present with pain as their primary complaint face higher rates of dismissal at the primary care level. That is not a neutral clinical finding. It is a structural failure with legal consequences.

Failure to counsel about fertility risk after diagnosis

A second, distinct failure occurs after diagnosis. A gynaecologist performs a laparoscopy, confirms endometriosis, excises visible lesions, and discharges the patient. The operative report documents the findings. No fertility counselling is provided. The patient is not told that her ovarian reserve may be compromised, that her tubes may be at risk, or that she should seek reproductive specialist input before attempting conception.

Two years later, she tries to conceive. Nothing happens. She returns to her GP, who refers her for fertility investigations. Those investigations reveal diminished ovarian reserve and bilateral tubal compromise — findings that were visible at the time of her laparoscopy and that should have prompted an immediate fertility counselling conversation.

Nobody told her. She spent two years trying naturally when she should have been in the care of a reproductive specialist from the moment of diagnosis.

This failure engages the informed consent doctrine directly. Under Rogers v Whitaker, the obligation to disclose material risks is not triggered only by a proposed procedure. It extends to the ongoing management of a diagnosed condition. A gynaecologist who knows that a patient’s endometriosis poses a material risk to her fertility — and who fails to disclose that risk — has breached the duty of informed consent, not merely the duty of clinical care.

Failure to manage ectopic pregnancy risk in a known endometriosis patient

The third failure pattern is the most acutely dangerous. A patient with known endometriosis presents to her GP or an emergency department with early pregnancy symptoms — a missed period, a positive home pregnancy test, and lower abdominal pain. The clinician notes the positive test and schedules a routine antenatal appointment at eight weeks. No early ultrasound is arranged. No consideration is given to the patient’s documented history of endometriosis and its implications for ectopic pregnancy risk.

At six weeks, she collapses. A ruptured ectopic pregnancy has caused intraperitoneal haemorrhage. Emergency surgery removes the affected tube. She survives — but with one fallopian tube, a significantly reduced chance of natural conception, and a pregnancy loss that was, in the clinical record, foreseeable.

The mechanism here is a failure of risk stratification. A clinician managing early pregnancy in a patient with known endometriosis must treat that patient as high-risk for ectopic pregnancy. That means early transvaginal ultrasound — ideally at five to six weeks — to confirm intrauterine location before symptoms of rupture develop. A clinician who applies a standard antenatal pathway to a high-risk patient has not met the standard of care.

The legal framework in NSW

Medical negligence claims in NSW are governed primarily by the Civil Liability Act 2002 (NSW) — a statute that sets out the legal tests for breach, causation, and damages in negligence proceedings. Understanding how that Act applies to endometriosis-related claims requires attention to three specific provisions.

Section 5B defines the test for breach. A clinician breaches their duty of care if the risk of harm was foreseeable, not insignificant, and a reasonable clinician in their position would have taken precautions against it. For endometriosis, the risks — to fertility, to ectopic pregnancy, to obstetric outcomes — are well-documented in clinical guidelines and the medical literature. They are foreseeable. A clinician who fails to address them cannot argue that the risk was unknown.

Section 5O provides a defence: a clinician does not breach their duty if their conduct was consistent with a practice widely accepted by peer professional opinion as competent professional practice. This is the peer professional opinion defence. It is important to understand what it does and does not protect. It protects a clinician who followed a recognised clinical approach, even if another approach might have been better. It does not protect a clinician who departed from the standard set by the relevant specialty body’s own published guidelines. Where RANZCOG’s guidelines require fertility counselling and a gynaecologist did not provide it, the section 5O defence is not available.

Section 5D governs causation. A clinician’s breach must have caused the harm. The primary test is the “but for” test: but for the clinician’s failure, would the harm have occurred? For endometriosis cases, this question is often the most contested. Where a patient argues that earlier diagnosis would have preserved her fertility, the defendant may argue that the disease would have progressed regardless. Expert clinical evidence is essential to resolving that question — and it is often where these cases are won or lost.

The duty of care in endometriosis-related claims may rest with a GP who failed to refer, a gynaecologist who failed to counsel, an obstetrician who failed to risk-stratify, or a hospital system that failed to provide timely specialist access. Each clinical actor in the pathway carries their own duty, and each can be assessed independently.

For a detailed overview of how these claims are structured and pursued in NSW, see Reframe Legal — Medical Negligence.

When endometriosis care may amount to medical negligence

The following scenarios map specific factual situations to the legal elements of negligence. Each one is drawn from the failure patterns described above. A reader who recognises their own experience in these scenarios should treat that recognition as a reason to examine the clinical record more carefully — not as a legal conclusion.

Scenario 1: Years of dismissed symptoms, late diagnosis, and permanent fertility loss

A patient presented to her GP repeatedly over five or more years with dysmenorrhoea, chronic pelvic pain, and dyspareunia. Each time, the GP attributed the symptoms to primary dysmenorrhoea or irritable bowel syndrome. No pelvic ultrasound was ordered. No referral to a gynaecologist was made. When the patient was eventually referred — prompted by difficulty conceiving — laparoscopy confirmed Stage III endometriosis with bilateral tubal involvement.

This scenario engages the breach element directly. A reasonably competent GP, applying RANZCOG’s guidance, would have referred this patient for specialist assessment within 12 to 24 months of her first presentation with these symptoms. The failure to do so over five or more years is a departure from that standard. Causation requires expert evidence about whether earlier diagnosis and treatment would have preserved tubal function and ovarian reserve — but the breach itself is clear.

Scenario 2: Diagnosis made, fertility risk not disclosed, reproductive years lost

A gynaecologist confirmed endometriosis by laparoscopy in a 28-year-old patient. The operative report documented Stage II disease with involvement of the left ovary. The patient was discharged with a prescription for hormonal suppression therapy. No fertility counselling was provided. No referral to a reproductive specialist was offered. The patient spent three years attempting natural conception before seeking fertility specialist input — at which point her ovarian reserve had declined significantly.

This scenario engages both the breach element and the informed consent doctrine. Under Rogers v Whitaker, the risk to fertility was material — a reasonable woman in this patient’s position would have wanted to know about it. The gynaecologist’s failure to disclose it was a breach of the duty of informed consent. Causation asks: if she had been told, would she have sought fertility treatment earlier? Where the answer is yes — and where earlier treatment would have produced a better outcome — the causal chain is established.

Scenario 3: Known endometriosis, no early pregnancy ultrasound, ruptured ectopic

A patient with a documented history of endometriosis presented to her GP with a positive home pregnancy test and mild lower abdominal discomfort at approximately five weeks gestation. The GP noted the positive test and scheduled a routine antenatal appointment at eight weeks. No early ultrasound was arranged. At six weeks, the patient presented to an emergency department with acute abdominal pain and haemodynamic instability. A ruptured ectopic pregnancy was confirmed. Emergency salpingectomy — surgical removal of the fallopian tube — was performed.

This scenario is among the clearest in the endometriosis-negligence landscape. The patient’s endometriosis history was documented. The elevated ectopic pregnancy risk was known and guideline-recognised. The GP’s failure to arrange early transvaginal ultrasound was a departure from the standard RANZCOG requires for this patient group. The harm — loss of a tube, haemorrhage, permanent reduction in fertility, and psychological trauma — was a direct consequence of that failure.

The three elements of negligence applied to endometriosis

For a medical negligence claim to succeed in NSW, three elements must all be established: duty of care, breach, and causation. In endometriosis-related claims, each element has a specific character. The duty is owed by the clinician who managed the condition — whether a GP, gynaecologist, or obstetrician — to the patient in their care. The breach is measured against the standard RANZCOG and the broader clinical literature set. Causation asks what would have been different if the standard had been met. All three must be present. A bad outcome alone is not enough.

Long-term and permanent harm

When endometriosis is mismanaged — whether through delayed diagnosis, absent counselling, or failure to monitor pregnancy risk — the harm does not resolve when the clinical failure is identified. It compounds.

Physical consequences

Delayed diagnosis allows endometriosis to progress. Stage I and Stage II disease, managed early, carries a meaningfully better prognosis for fertility than Stage III or Stage IV disease identified years later. Tubal damage caused by untreated endometriosis is often irreversible. Ovarian endometriomas, left untreated, can destroy ovarian tissue and reduce the pool of viable eggs. Surgical treatment of advanced endometriosis carries its own risks — including inadvertent damage to the bowel, bladder, or ureter — that would not arise if the condition had been identified and managed earlier.

For patients who suffered a ruptured ectopic pregnancy following a failure to monitor, the physical consequences include the loss of a fallopian tube, the risk of haemorrhage and its sequelae, and a significantly reduced probability of natural conception. Some patients require multiple surgeries. Others develop chronic pelvic pain as a result of adhesions formed during emergency surgery.

Psychological consequences

The psychological harm associated with endometriosis mismanagement is substantial and well-documented. According to research published in peer-reviewed literature, women with endometriosis report significantly elevated rates of anxiety and depression compared to the general population — and those rates are higher still in women who experienced prolonged diagnostic delay.^[8] Pregnancy loss, including ectopic pregnancy, carries its own psychological burden: grief, post-traumatic stress, and the compounding distress of understanding that the loss may have been preventable.

Fertility failure — particularly where a patient was never told that her diagnosis placed her at risk — produces a specific kind of harm. The patient did not make an informed choice to delay treatment. She was not given the information she needed to make that choice. The psychological consequence of understanding that is distinct from the grief of infertility itself.

Financial consequences

The financial impact of endometriosis mismanagement is significant and often underestimated. Fertility treatment in Australia — including IVF — carries costs that range from approximately $5,000 to $10,000 per cycle out of pocket, after Medicare rebates.^[9] Patients who required earlier fertility intervention but were denied the opportunity to pursue it may need multiple cycles where one or two might have sufficed. Patients who lost ovarian reserve due to delayed treatment may require donor egg programmes, which carry additional costs.

Lost income during fertility treatment, during recovery from ectopic pregnancy surgery, and during the management of chronic endometriosis-related pain represents a further head of damage. Unpaid carer burden — where a partner or family member provides care during recovery — is also recoverable in NSW negligence proceedings.

What compensation covers in NSW

A successful medical negligence claim in NSW can recover two broad categories of damages. General damages compensate for pain, suffering, and loss of enjoyment of life. Special damages compensate for actual financial losses — past and future medical expenses, lost income, fertility treatment costs, and the cost of ongoing care.

Under section 16 of the Civil Liability Act 2002 (NSW), non-economic loss — pain and suffering — is only recoverable where the harm represents at least 15% of a most extreme case. This threshold is not a barrier to most serious endometriosis-related claims, but it is a factor that affects how general damages are calculated. A legal adviser with experience in this area will assess where a particular claim sits against that threshold.

The limitation period for medical negligence claims in NSW is three years under the Limitation Act 1969 (NSW). Critically, that period runs from the date the claimant knew, or ought reasonably to have known, that they had a cause of action — not necessarily from the date of the clinical failure. For endometriosis cases, where the connection between a clinician’s failure and the resulting harm may not become apparent until years later, the date of discoverability is a legally significant question.

These figures are general reference ranges only. Each case turns on its own evidence — medical records, expert clinical opinion, and economic reports that quantify the actual loss.

How to think about your own situation

These questions are not a legal test. But the pattern they reveal — when several of them point in the same direction — is often the starting point for a proper examination of whether the standard of care was met. The medical records will either support or contradict the clinical picture. That examination is what matters.

For a detailed explanation of how medical negligence claims are assessed and pursued in NSW, see Reframe Legal — How Medical Negligence Claims Work in NSW.

Uncertainty is normal — and it is not evidence that nothing went wrong

Most people who experienced what is described in this article spent years being told that their pain was normal, their concerns were excessive, or their symptoms did not warrant investigation. That experience does not disappear when the diagnosis finally arrives. It shapes how people approach the question of whether anything went wrong legally — with doubt, with reluctance, and often with a sense that they are somehow overreaching by asking the question at all.

That doubt is rational. It is the predictable result of years of being dismissed. But it is not evidence that the law has nothing to say about what happened.

Legal analysis in medical negligence does not depend on how certain the patient feels. It works from objective evidence: the medical records, the clinical guidelines, the expert opinion of a specialist in the relevant field, and the legal standard the courts apply. The question is not whether the clinician meant well or whether the patient felt wronged. The question is whether the conduct met the benchmark the profession sets for itself.

In my view, the standard of care for endometriosis — particularly around fertility counselling and ectopic pregnancy risk — is not ambiguous. RANZCOG’s guidelines are specific. The case law on informed consent is settled. Where a clinician failed to meet those standards and harm followed, the legal framework in NSW provides a mechanism for examining that failure honestly.

Understanding what happened — and whether it could have been different — is not the same as assigning blame. It is the starting point for an honest answer. For information about the consent obligations that apply in these situations, see Reframe Legal — Informed Consent and Medical Negligence. For information about how clinicians are regulated and how complaints are managed, see AHPRA — Australian Health Practitioner Regulation Agency.

About the author

Dr Rosemary Listing is a lawyer with a PhD in law, specialising in medical negligence. Her legal practice concentrates on cases where clinical care in NSW failed to meet the standard the law and the profession require. Her doctoral research and legal practice have given her a rigorous command of the clinical standards against which negligent conduct is measured, and of the evidentiary requirements those claims must satisfy in NSW courts.

Endometriosis-related negligence sits at a particularly complex intersection of clinical and legal analysis. The condition is chronic, progressive, and frequently mismanaged across multiple points in the care pathway — from the primary care level through to specialist gynaecological and obstetric care. Establishing legal liability requires not only identifying the clinical failure but demonstrating, through expert evidence, that the failure caused a harm that would not otherwise have occurred. That causal question is often the most technically demanding aspect of these claims.

The cases that have reached NSW courts, and the complaints recorded by the Health Care Complaints Commission, reveal a consistent pattern in how endometriosis failures occur and how they are assessed: the failure is rarely a single dramatic error. More often, it is a sequence of small decisions — a referral not made, a conversation not had, a risk factor not documented — that compound over years into a harm that was, in retrospect, foreseeable and preventable.

The people who seek a legal examination of their records in these cases are not looking to blame anyone. They want to understand what happened and whether it could have been different. Many waited years before asking that question — often because they had spent so long being told their pain was normal that they doubted their own experience, even after the diagnosis arrived.

Dr Listing examines medical records alongside expert clinical opinion and applies the legal standard — not to assign blame, but to give people an honest answer about whether what happened to them met the benchmark the profession sets for itself. That answer, whatever it is, is what most people are actually seeking.

This article contains general legal information only. It does not constitute legal advice, and reading it does not create a lawyer–client relationship. The law discussed applies to New South Wales, Australia. Each person’s circumstances differ. Time limits apply to legal claims in NSW, and these limits may affect your position. You should seek independent legal advice about your specific situation.