This is according to a study by the charity Endometriosis UK and HR software provider Ciphr, which also finds that many employers do not provide free period products at work and have inflexible uniform rules.
‘Breaking the stigma: what HR teams need to know about endometriosis and menstrual health’, is based on a survey of 121 HR professionals and leaders carried out during summer 2025. Respondents were asked about a range of topics including endometriosis – a disease impacting 1 in 10 women and those assigned female at birth from puberty to menopause.
The report includes ‘talking points’ – a range of practical suggestions of ways employers can help empower managers to create a supportive environment for those with endometriosis, and ensure their organisation approaches menstrual health with the same care and attention as any other health issue.
Endometriosis UK runs an Endometriosis Friendly Employer scheme, through which employers commit to enabling employees with endometriosis to thrive at work – and Ciphr is one of more than 150 employers which has signed up to the scheme. Key findings from their joint report include:
- UK employers are significantly less likely to have menstrual health policies (11%) than mental health (57%) or peri/menopause policies (48%) – although the flexible working practices offered by the vast majority (89%) should provide some support for those with endometriosis
- Relatively few (21%) employers record information about how many of their employee have a diagnosed or suspected menstrual health conditions, like endometriosis
- Just 16% of HR professionals thought that line managers in their organisation had the right training and resources to effectively support people around menstrual health issues. That figure drops to 13% for endometriosis
- 29% said that free period products are not supplied in their workplace, with an additional 3% replying ‘don’t know’ – with Endometriosis UK suggesting that doing so is increasingly seen as the norm
- Among respondents at an employer where uniforms are worn, just 18% said that all employees are asked if they require any adjustments to their uniform – something that could be very important for those with endometriosis, who may experience heavy periods or bloating during their menstrual cycle, which can change their body shape by the equivalent of up to two dress sizes
To coincide with the launch of the report, Endometriosis UK and Ciphr are encouraging employees, volunteers and supporters to share their experience of #EndometriosisAtWork on social media, if they feel comfortable doing so. Three such stories are shared in the report, including two from employees of Endometriosis Friendly Employers.
Julie Burns, Endometriosis Friendly Employer scheme manager at Endometriosis UK, says: “We know that there are many HR professionals already putting in place the right measures to enable those with endometriosis to feel valued, be productive and contribute to their organisation’s success – but as a charity we also hear stories of women and those assigned female at birth treated unfairly or without sympathy, forced to change careers or abandon their ambitions, because of the disease.
“We hope HR professionals recognise that providing support to the estimated 1.5m in the UK with endometriosis is in their interests. Doing so will not only enable that community to achieve their potential, but it sends a message to your wider team that they are valued and can expect support and reasonable adjustments.”
Claire Hawes, chief people and operations officer at Ciphr, says that employers should be troubled by many of the report’s findings. She comments: “It's concerning that these results reveal such a wide gap in organisational awareness and readiness to support employees living with endometriosis and other menstrual health conditions. When managers are perceived as unapproachable or ill-equipped to respond with empathy and understanding, organisations risk sidelining the needs of a significant part of their workforce.
“HR teams have a vital role to play in changing this. Managers must be empowered to support their people holistically; not just in terms of performance and KPIs, but in their health and wellbeing too. That means investing in training, implementing flexible policies, signposting resources, and fostering open, compassionate conversations about health.”
Ann Allcock, head of diversity at Ciphr, says: “This important research shines a light on the reality of workplace challenges experienced by employees with endometriosis or other menstrual health issues. As with other sex- or gender-based topics or conditions that have long been considered ‘personal’, lack of awareness, embarrassment and/or indifference are still the norm in many workplaces, resulting in inequity and wasted talent. But the individual and organisational impacts can't be ignored, and employers must ensure that their policies, training and culture will enable, rather than frustrate, manager actions to support those affected.”
Ciphr and Endometriosis UK’s report is available to view and download at https://www.ciphr.com/infographics/menstrual-health-and-endometriosis-in-the-workplace-survey.
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Notes to editors
For interviews with Endometriosis UK spokespeople or case studies, please contact Sam Burne James on sam.burnejames@endometriosis-uk.org or 07848 380 394. The report is also available on their website here: https://www.endometriosis-uk.org/new-report-endometriosis-uk-and-ciphr
For interviews with Ciphr spokespeople, please contact Emma-Louise Jones on ejones@ciphr.com.
What is endometriosis?
Endometriosis occurs when cells similar to the ones in the lining of the womb (uterus) are found elsewhere in the body. These cells can grow and change in response to hormones in the menstrual cycle, this can cause inflammation, pain and scar tissue. Endometriosis is most commonly found on the lining of the pelvis (peritoneum) and may occur in the ovaries and involve other pelvic organs, like the bowel or bladder. Less commonly, endometriosis can also be found outside the pelvis, such as in the chest. Find out more at endometriosis-uk.org.
About the Endometriosis Friendly Employer scheme
The Endometriosis Friendly Employer scheme is a way for employers to confirm their commitment to developing a work environment and culture that enable employees with endometriosis to thrive at work. Through the scheme, Endometriosis UK provides guidance for employers on how to support employees with endometriosis and menstrual health conditions, and work towards improving the work environment. As of September 2025, there are more than 150 Endometriosis Friendly Employers - ranging from NHS bodies, universities and local authorities to listed, global businesses, SMEs and charities – with a combined headcount in excess of half a million. For more information visit endometriosis-uk.org/endometriosis-friendly-employer-scheme.
About Ciphr
Ciphr is the go-to HR and payroll software and solutions partner for medium and large organisations in the UK. Its integrated HR, payroll, benefits, learning and recruitment software, services and content provide invaluable insights to HR teams, helping to inform their people strategy and grow and develop their organisations. Ciphr is on a mission to amplify the voice and value of HR through intelligent people data solutions that help HR be heard – in the boardroom and across the business.
The Ciphr Group is a privately held company backed by ECI Partners and headquartered in Reading. Over 230 employees work across the group, which includes Ciphr and Avantus.
Ciphr spokespeople are available to provide expert media comment on a broad range of topics, including HR strategy, people management, employee experience and wellbeing, diversity, equity, and inclusion (DE&I), payroll, pay, benefits and rewards, learning and development, the future of work, tech trends, business and leadership, marketing, and more.
