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Delayed Diagnosis of Endometriosis in Ireland: A Growing Area of Medical Negligence Litigation

Published: 5 Aug, 2026
Author: Anna O'Donoghue

Delayed diagnosis of endometriosis can have life-changing consequences, including chronic pain, disease progression, and reduced fertility. Understanding when a delay may amount to medical negligence is essential for patients seeking answers and accountability.

For many women in Ireland, obtaining a diagnosis of endometriosis can take years. During that time, symptoms are often dismissed as “normal” menstrual pain or attributed to other conditions, leaving patients to endure chronic pain, repeated medical appointments and a significant deterioration in their quality of life.
As awareness of endometriosis continues to increase, so too does recognition of the devastating consequences that can arise when the condition is not diagnosed or treated in a timely manner. Delayed diagnosis is now emerging as an increasingly important area of medical negligence litigation in Ireland, particularly where avoidable delays have allowed the disease to progress to a stage requiring more extensive treatment or resulting in reduced fertility.

What is Endometriosis?

Endometriosis is a chronic inflammatory condition in which tissue similar to the lining of the uterus grows outside the womb. These deposits can be found on the ovaries, fallopian tubes, pelvic lining, bowel, bladder and, in more severe cases, other organs.

The condition affects approximately one in ten women and while symptoms vary, many patients experience:

  • severe menstrual pain;
  • chronic pelvic pain;
  • pain during sexual intercourse;
  • painful bowel movements or urination, particularly during menstruation;
  • heavy menstrual bleeding;
  • fatigue; and
  • difficulty conceiving.

Although there is currently no cure, early diagnosis and appropriate treatment can help manage symptoms, slow disease progression and preserve fertility.

Why Does Diagnosis Take So Long?

Historically, endometriosis has been significantly under-recognised. Many patients report consulting their GP on numerous occasions before appropriate investigations or referral to a consultant gynaecologist were arranged.
Several factors can contribute to delayed diagnosis, including:

  • symptoms being dismissed as normal menstrual pain;
  • misdiagnosis as irritable bowel syndrome, urinary tract conditions or psychological illness;
  • failure to appreciate the significance of recurring symptoms;
  • delays in referral for specialist assessment; and
  • failure to arrange appropriate imaging or diagnostic investigations where clinically indicated.

While diagnosing endometriosis can be challenging, healthcare professionals are expected to recognise persistent symptoms and investigate appropriately where the clinical picture warrants further assessment.

The Consequences of Delay

One of the most significant concerns associated with delayed diagnosis is disease progression.
Endometriosis is generally a progressive condition. Without timely treatment, endometrial lesions may continue to grow, causing chronic inflammation, fibrosis and extensive adhesions within the pelvis. Patients may also develop ovarian endometriomas, deep infiltrating endometriosis affecting the bowel or bladder, or significant distortion of pelvic anatomy.
When diagnosis is delayed, treatment frequently becomes more complicated.

Rather than relatively straightforward laparoscopic excision of early disease, patients may require extensive surgery involving multiple organs. In severe cases, surgery may include bowel resection, bladder surgery, removal of ovarian cysts or procedures that carry increased risks of complications and prolonged recovery.
Earlier diagnosis cannot prevent every complication, but it may significantly reduce the likelihood that the disease will progress to these advanced stages.

Fertility and Delayed Diagnosis

Perhaps one of the most devastating consequences of delayed diagnosis is its effect on fertility.
Endometriosis can impair fertility in several ways, including damage to the ovaries and fallopian tubes, distortion of pelvic anatomy and chronic inflammation affecting reproductive function.
For some women, timely diagnosis and treatment may improve fertility outcomes. However, where diagnosis is delayed for many years, disease progression may substantially reduce the likelihood of natural conception or necessitate assisted reproductive treatment.

While infertility can occur even where care has been entirely appropriate, there are cases where avoidable delay may have materially contributed to a patient’s reduced fertility or loss of reproductive opportunity.
These cases require careful expert medical evidence to determine whether earlier diagnosis would probably have resulted in a better outcome.

When Can a Delayed Diagnosis Amount to Medical Negligence?

Not every delayed diagnosis will amount to medical negligence.
Irish healthcare professionals are not expected to guarantee a diagnosis at the earliest possible opportunity. However, they are expected to exercise the level of skill and care reasonably expected of a competent practitioner in similar circumstances.

A medical negligence claim may arise where:

  • persistent symptoms were repeatedly dismissed without appropriate assessment;
  • recognised warning signs were not appropriately investigated;
  • referral to specialist gynaecology services was unreasonably delayed;
  • relevant diagnostic tests were not arranged when clinically indicated; or
  • there was a failure to act upon investigation results or specialist recommendations.

Importantly, it is not enough to show that a delay occurred. It must also be established that the delay caused avoidable injury or materially worsened the patient’s outcome.

This may include evidence that earlier diagnosis would probably have resulted in:

  • less extensive disease;
  • less invasive surgery;
  • preservation of fertility;
  • reduced pain;
  • fewer complications; or
  • improved long-term prognosis.

The Importance of Expert Medical Evidence

Medical negligence claims involving endometriosis are often medically complex.

Expert evidence is usually required from independent specialists to determine:

  • whether the standard of care fell below that expected of a reasonably competent practitioner;
  • when diagnosis should reasonably have been made;
  • whether earlier referral or investigation would have occurred in accordance with accepted medical practice; and
  • whether the delay caused additional injury or loss.

Because endometriosis varies significantly between individuals, each case must be assessed on its own clinical facts.

The Position in Ireland

There has been growing public and political recognition in Ireland of the need to improve women’s healthcare, including earlier recognition and treatment of conditions such as endometriosis.
As awareness increases among both patients and healthcare professionals, expectations regarding timely assessment and referral are also evolving. Patients are increasingly informed about the symptoms of endometriosis and are more likely to question prolonged delays before diagnosis.

Consequently, solicitors practising in medical negligence are seeing a greater number of enquiries from women who believe that opportunities to diagnose or treat their condition at an earlier stage were missed.
Although every case is different, delayed diagnosis claims involving endometriosis are likely to become a more prominent feature of medical negligence litigation in Ireland in the coming years.

How We Can Help

Living with undiagnosed endometriosis can have profound physical, emotional and financial consequences. Where avoidable delays have resulted in disease progression, unnecessary surgery, chronic pain or reduced fertility, patients may be entitled to pursue a medical negligence claim.
Our Medical Negligence Team has extensive experience investigating delayed diagnosis claims. We work closely with leading independent medical experts to determine whether the care provided met the required standard and whether earlier diagnosis would likely have resulted in a better outcome.

If you believe your diagnosis of endometriosis was unreasonably delayed, we can advise you on your legal rights, obtain the necessary medical records and provide clear guidance on whether you may have grounds to bring a claim. For more details contact [email protected]

 

Author

  • Anna O'Donoghue

    With 8 years’ experience as a Solicitor and 4 years at Gibson & Associates LLP, Anna specialises in Medical Negligence and has worked on a range of complex, high-value claims, including severe birth injury cases, delayed diagnosis matters, and the Swine Flu/Pandemrix litigation.

    Qualified in the UK with an LLB and a Master’s in Law and Criminology, Anna is a Law Society member who is passionate about supporting clients through challenging circumstances while navigating complex medical and legal issues.

Medical Negligence FAQ's

Is there a time limit before engaging with a solicitor.

Legal proceedings must be commenced within two years of the date of knowledge of the injury, subject to certain exceptions. In a lawsuit, the ‘date of knowledge’ refers to the date on which the plaintiff knew or ought to have known that he or she had suffered an injury.

An important exception is in the case of persons under the age of 18, who are described in law as minors or infants. For minors, the Statute of Limitations ‘clock’ does not begin until a child reaches their eighteenth birthday. For more information see Child Injury Claims.

What will compensation cover?

Compensation for a brain injury claim may cover medical expenses, lost wages, future medical bills, future lost earnings, and will take into account the impact of the injury on the individual’s quality of life. Our brain injury solicitors assess each case thoroughly to determine an outcome that is in your best interests.

How do I access my medical records?

A copy of your medical records can be requested from the hospital, clinic, or medical professional that treated you under the Freedom of Information Act. Alternatively, we can arrange to obtain a copy of your records on your behalf; to do so, you will need to sign an authority form that gives us permission to obtain your records.

What does 'No Win, No Fee' mean?

The concept of “no win, no fee” (also known as “no foal, no fee”) is common practice among solicitors in Ireland. Under this type of agreement, the solicitor will take on your personal injury or any other type of case, and if the case isn’t won, the solicitor won’t charge you a fee. The sole purpose of “no win, no fee” is to give you the legal power to pursue a claim regardless of your financial state or legal experience.

How long will the medical negligence claim take?

As a term used in personal injury litigation, general damages refer to the amount placed on the victim’s pain and suffering, which may include psychological trauma, loss of consortium, etc. In essence, general damages relate to non-monetary losses suffered by the claimant and which are not capable of exact quantification.

The term special damages refers to monetary losses that are quantifiable, such as medical treatment expenses or income loss that has been certified. These are consequential financial losses suffered by you which are directly to the negligent treatment and harm caused.

In other words, these are ‘out-of-pocket’ expenses incurred which might also include the cost of corrective surgery or treatment, medication, rehabilitation costs, travel expenses, and so on.

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Thank you so much Guys !!
I am writing this review as an absolute necessity as I cannot let the work done by Gibson and associates to go by without acknowledgement. I would recommend this firm to anybody in need of legal assistance. I want to single out Ms Anna O Donoghue for a special thank you for exceptional knowledge and the professionalism needed for the complexity of these cases that we brought to Gibson and associates, Thank you Anna, we would have been lost without you. Also a massive thank you to our amazing barrister Mr John Kerr BL , unbelievable professionalism honestly and knowledge and a great result for us . Thank you all for the hard work you all did for us Sinead Ivory and the team at Gibson and associates.
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