Special
‘Overlooked, undervalued and underfunded’- how Flo is tackling inequalities in women’s health
Flo Health has recently become Europe’s first femtech unicorn, raising more than US$200m in funding

Although the world has reached important milestones towards gender parity, there remains much to be done – especially when it comes to the gender health gap. Sue Khan, VP of privacy and data protection officer at Flo Health, tells Femtech World how the company is building a better future for women.
Could you tell us a bit about your background and your current role at Flo?
I started my career about 17 years ago in the telecoms space, first at The Carphone Warehouse and then at the O2 where I stayed for nearly 10 years, and ultimately became the head of data protection and privacy. After that, I spent some time at Hasbro, the entertainment company, where I worked on interesting issues like smart toys, and age appropriate design.
Ultimately, I moved into health tech with my role at Babylon. My time at Babylon opened me up to a whole new world of privacy challenges, including the introduction of AI solutions to traditional healthcare systems to assist with efficiencies globally, with the NHS and in countries like Rwanda, where innovation is really welcomed.
As a privacy lawyer, I thought, it just doesn’t get more interesting and rewarding than protecting health data with the advancement of technologies. I grew so passionate about technology giving affordable and accessible healthcare.
I started wondering if I could focus on something more specific that was close to my heart. I have two daughters, and I’m at a stage in life where perimenopause, or the menopause, is not far off. I was fascinated by femtech as nearly all of the companies and accelerators in the industry were doing such important work.
I followed Flo Health’s success for years. When the opportunity arose, I couldn’t believe my luck and since January 2023, I’ve been the vice president of privacy and data protection officer at Flo Health.
At Flo, my goal is to help women feel informed and in control of their health data by clearly communicating about privacy in simple terms, so they can confidently use Flo without concern.
In my role, I look after the privacy function and manage a team that includes four privacy lawyers, and a privacy manager. I’m responsible for Flo’s framework for policies, procedures, training, risk management and the maintenance of our industry-unique ISO Privacy 27701 certification. I also contribute to product development, providing contextual, nuanced advice while preparing for the future, including for the emergence of new privacy laws and policy decisions globally.
How did you get into women’s health?
I was born in Scotland but moved to Saudi Arabia aged five, due to my parents’ careers as doctors. During the Gulf War, aged 10, my school was evacuated and my sister and I moved to New York City. I moved to London aged 13, where I am currently based with my husband and two daughters.
My dad was a consultant orthopaedic surgeon who dedicated much of his career to the NHS and teaching medicine. I’ve seen him inspire and motivate his medical students (he even taught some of my school friends at Imperial College London). His passion for both healthcare and education is immense and infectious. I always knew his career satisfaction levels were through the roof.
My mum worked as a GP in a local practice in a south-west Saudi town. I would often join her practice, and see how people, especially women from neighbouring Yemen, would come to seek treatment without understanding their bodies.
It was not uncommon for women to seek treatment for pain related to their periods or even pregnancy without knowing much about their reproductive health. It became apparent to me at a young age how important clear communication and education are for the overall health and wellbeing of women.
I also realised through my experiences at my mum’s practice that women need to have access to healthcare and a support system in order to thrive.
My experiences throughout my youth sparked an interest in healthcare that persists today and ultimately drove my career interests to Babylon and now Flo.
How would you describe the impact and importance of your work?
My team and I are dedicated to protecting Flo users’ privacy rights and freedoms, and safeguarding their most intimate health data. We want to help articulate what ‘best in class’ could look like in the femtech space.
In an industry of particular interest to regulators and privacy groups alike, I manage communications with relevant regulators to further promote Flo’s privacy practices and urge the femtech industry to follow suit.

That means maintaining a commitment to delivering a trusted product among varying degrees of privacy expectations and cultures around the world, ensuring privacy has a seat at the table when making key decisions impacting user data, and implementing robust and audit-ready policies, procedures, data maps and training programmes.
What are the most significant challenges in women’s health today?
The two biggest challenges I’d like to highlight are the gender research gap and the access to medically credible information and digital health technologies.
Recent studies have found that women’s health is being overlooked, undervalued, and underfunded leading to poor female health and fertility outcomes for people with periods globally.
It has also been historically overlooked when it comes to scientific research, resulting in limited understanding and stark knowledge gaps.
That’s precisely why closing the gender research gap is embedded within Flo’s mission of building a better future for female health.
Flo’s science team collaborates with world-class medical research institutions to help improve the day-to-day lives of women globally by deepening our understanding of women’s health. Their research covers a broad range of topics, including menstrual literacy on the global scale, women’s health related reproductive conditions, sexual health including female orgasms, pregnancy, perimenopause and menopause.
How is Flo addressing these challenges?
Flo has become a powerful force in democratising access to personalised health information and tackles several key issues:
- Bridging healthcare disparities: Flo’s pro-social programme, which provides free premium access to up to one billion women across 66 countries, with over 17 million subscriptions already donated. Flo is actively working in collaboration with UNFPA to level the playing field in global women’s health.
- Closing the knowledge gap: By providing accurate, accessible information to millions of women, Flo is improving health literacy on a global scale. This is particularly impactful in underserved regions where traditional healthcare systems fall short.
- Driving research and innovation: With its partnerships with world-class institutions, Flo is uniquely positioned to advance women’s health research and drive evidence-based improvements in care.
- Breaking taboos: With its vast user base, Flo is normalising conversations around women’s health, helping to reduce stigma and encourage open dialogue about previously taboo topics.
- Empowering through health information: By enabling 70 million women to track and understand their health patterns, Flo is putting personalised insights directly into the hands of users, fostering proactive health management.
Flo has recently become the first femtech unicorn. What does the unicorn status mean for the company and its users?
This investment significantly strengthens Flo’s position as a leader in the global femtech industry. With our valuation now reaching one billion, Flo joins the elite ranks of femtech unicorns, a status achieved by very few companies in this space.
This milestone not only validates our mission and approach but also underscores the growing recognition of the importance of female health solutions.
In terms of what this means for the company and the broader industry, this investment also reinforces the potential of the femtech market, which is projected to reach US$60bn by 2027. Our success demonstrates that there’s both a critical need and a substantial market for user-centric women’s health solutions.
We’re committed to setting new benchmarks for the industry in terms of user experience, data privacy, and the application of advanced technologies to women’s health. As a unicorn in this space, we’re not just participating in this growth, we’re helping to shape the future of women’s health technology.
Do you feel a greater sense of responsibility to address the gender health gap now that you’ve reached this milestone?
Our mission remains unchanged – closing the gender health gap was just as important prior to us achieving the unicorn status as it is now.
However, the latest investment round unlocks the next growth stage which will propel us closer towards achieving our goal and will enable us to build and launch features to further benefit our users.
We know Flo is looking to expand into new user segments. What should we expect over the coming months?
We will extend our reach to untapped user segments by developing tailored features for women experiencing perimenopause and menopause, and partners of our existing users through our ‘Flo for Partners’ feature.
How do you see femtech evolving over the next five years?
The femtech industry is constantly evolving and full of exciting businesses like Flo, focused on building improvements for female health. We want to see more investment in these organisations! Some continuous evolvement I hope to see includes:
- Increased representation: Women have a spectrum of healthcare needs and concerns. As a woman and as a South Asian, I want to see more focus on underrepresented populations when it comes to health research so that all women can benefit from more nuanced findings that are personally applicable to them.
- Technological and regulatory developments: We will no doubt see the development of AI technologies to advance female health solutions. As a lawyer, I’m particularly interested in seeing legislation develop to support the responsible deployment of such technologies.
- Accessibility: Femtech and education about female health should be accessible to all, regardless of geographical or economic barriers. This includes affordable services and developing appropriate lingual and cultural localisation.
- Holistic views of women’s health: With women’s consent, collaboration and interoperability between apps and healthcare systems can encourage a single view of a person’s health and result in better healthcare outcomes over time.
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News
Jill Biden visits Imperial on women’s health and AMR mission

Former US first lady Dr Jill Biden visited Imperial College Healthcare NHS Trust and Imperial College London to explore work on women’s health and antimicrobial resistance.
The visit was hosted by professor the Lord Darzi of Denham, who chairs the Fleming Initiative and directs Imperial’s Institute of Global Health Innovation.
Dr Biden, chair of the Milken Institute’s Women’s Health Network, spoke about the impact scientists, clinicians, innovators and investors can have on improving women’s healthcare.
Dr Biden stressed the importance of “collaboration, prevention and education” in improving women’s health globally.
At the museum, Dr Biden and Esther Krofah, executive vice-president of health at the Milken Institute, heard about the worldwide significance of the discovery and the contribution of women who, during wartime Britain, grew penicillin in bedpans to support early experimentation.
The discussion also explored how AMR is a key women’s health issue, with women disproportionately affected in low and middle-income countries, and in high-income settings where women are more likely than men to be prescribed antibiotics.
Dr Biden was shown an architectural model of the Fleming Centre in Paddington, which will bring together research, policy and public engagement to address AMR worldwide.
The second part of the visit brought together Imperial clinicians, researchers and innovators for a roundtable on women’s health priorities, including improving diagnosis, equity in maternity care and support during the menopause transition.
Participants highlighted wide variation in the quality of care for conditions affecting women and called for fairer access to services, with the postcode lottery named as a priority to address.
Professor Tom Bourne, consultant gynaecologist and chair in gynaecology at Imperial’s Department of Metabolism, Digestion and Reproduction, described how AI could improve diagnostic accuracy for conditions such as endometriosis.
Equity emerged as a central theme.
Professor Alison Holmes, professor of infectious diseases at Imperial College London and director of the Fleming Initiative, highlighted persistent gaps in women’s representation in clinical trials, including antibiotic studies, which limits the ability to optimise care and treatments.
Dr Christine Ekechi, consultant obstetrician and gynaecologist at Imperial College Healthcare NHS Trust, drew on national maternity investigations to underline the importance of valid data, meaningful engagement with affected communities and rebuilding trust.
Menopause and midlife health were also identified as priorities for clinical research.
Professor Waljit Dhillo, consultant endocrinologist and professor of endocrinology and metabolism in Imperial’s Department of Metabolism, Digestion and Reproduction, described a new treatment for hot flushes, including for women unable to take hormone replacement therapy, such as those with a history of breast cancer.
The discussion then turned to bringing innovation into health systems. Innovators shared how data and technology are being used to close gaps in women’s health, while noting challenges in accessing funding to grow and scale.
Dr Helen O’Neill and Dr Deidre O’Neill, co-founders of Hertility Health, described predictive algorithms using self-reported data to help diagnose gynaecological conditions at scale.
Embedded into clinical workflows, the technology could reduce waiting times, identify conditions earlier and improve outcomes. They noted how “we have cures for the rarest genetic conditions but don’t even have the answers to common women’s health issues.”
Dr Lydia Mapstone, Dr Tara O’Driscoll and Dr Sioned Jones, co-founders of BoobyBiome, outlined work creating products that harness beneficial bacteria found in breast milk to support infant health.
By isolating and characterising key microbial strains, BoobyBiome has created synbiotics, combinations of beneficial bacteria and the food that nourishes them, to make these benefits accessible to all babies.
Speakers throughout the visit stressed the need to reduce variation in care quality and outcomes for women, strengthen prevention and education, and address power and equity in women’s health.
Professor the Lord Ara Darzi said: “It was a privilege to welcome Dr Biden and the Milken Institute to Imperial to meet some of the outstanding researchers, clinicians and innovators advancing women’s health.
“Imperial’s unique combination of clinical excellence and world-leading research positions us at the forefront of tackling the biggest health challenges facing society and the UK’s ambition for innovation demands nothing less.
“For too long, the health needs of women and girls across their life course have not received the attention they deserve.
“By working together across borders and disciplines, we can transform equitable access to care, accelerate the detection and treatment of disease, and ultimately improve health outcomes for millions of women in the UK and around the world.”
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