Skip to content Accessibility statement

Diagnosing endometriosis takes an average of almost 7 years, study shows

News

Posted on Thursday 22 February 2024

Endometriosis takes an average of 6.6 years to be diagnosed worldwide, with delays of up to 27 years reported in the UK, researchers at the University of York have found.
Addressing diagnostic delay must remain a priority for researchers, health care providers and policy makers, the researchers say.

The disease, thought to affect 10% of women globally, is a condition where tissue similar to the lining of the womb grows in other places outside the womb. It’s painful, exhausting, interferes with daily life and can lead to infertility if untreated.

In a review of 22 existing research papers in the English language focusing specifically on delayed diagnosis for endometriosis, the researchers found that the average time to diagnose the condition was 6.6 years. But the delays varied within the study, from 6 months in a small study from Brazil, right up to a study in the UK showing a 27-year delay.

The research, although not yet published in a journal, has been featured in New Scientist.

Urgent need

Dr Amanda Mason-Jones, Associate Professor in Global Public Health in the Department of Health Sciences at the University of York, said: “The results of our study demonstrate just how widespread delays to the diagnosis of endometriosis are. We also observed that timelines for diagnosis varied significantly between countries, emphasising the potential for action to be taken to reduce delays.  

"Our findings highlight the urgent need for targeted interventions to address these delays, particularly in the UK where some of the longest waiting times were identified.   

Lack of knowledge

While the study didn’t set out to look at the reasons for delays or compare methodologies in different countries, multiple factors for delays were cited in the various research papers. These included: a lack of knowledge among patients and health care professionals; the existing stigma of discussing a gynaecological condition;  a lack of access to good health systems; a lack of an established referral pathway; and normalisation of the painful symptoms by health professionals or friends and family.

A crucial first step in establishing an accurate picture of diagnostic delay, say the researchers, would be better tracking and reporting of patient outcomes through medical records.  

Inadequate

Jodie Fryer, who led the research as part of her Master of Public Health (MPH) degree at the University of York, said: “The majority of studies included within our research relied on women self-reporting symptoms to medical professionals. The problem arising from this is two-fold: firstly, women struggle to verbalise or explain symptoms, and secondly, when they do medical records are often inadequate or unavailable. The lack of availability of records is exacerbated when multiple health professionals are seen in multiple settings.

"Accurate keeping of records could improve tracking of endometriosis symptoms, allow for more accurate representation of the reasons for diagnostic delays, and help to establish guidelines for realistic versus excessive wait times for women.”

She added: “Given the severity of pain and extent of the disease, as well as the increased costs for health systems of a slow diagnosis, addressing diagnostic delay must remain a priority for researchers, health care providers and policy makers.”

Research newsletter

Our monthly research newsletter features a curated mix of news, events, and recent discoveries delivered straight to your inbox.

Sign up

Explore more news

News

18 August 2026

Sir Michael Caine has lent his voice to a research project exploring how technology can help combat harmful deepfakes.

News

17 August 2026

A forgotten landscape that once drew world-leading botanists to North Yorkshire could hold the key to restoring lost wildlife, according to new research.

News

13 August 2026

Only 13 low-and middle-income countries offer smokers the full support needed to help them quit, leaving around 1.3 billion people without access to effective care, according to a new study.

News

12 August 2026

Professor Luke Mackinder is to undertake a 10-year project to unlock the secrets of how algae capture half of global carbon dioxide in a bid to combat climate change.

News

10 August 2026

Nearly two million households in England and Wales are living in water poverty according to a report published by the Consumer Council for Water (CCW), and compiled by researchers at York.

Read more news