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What does your cycle say about you?

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Menstrual data is finally being recognised for its value in medical science, but are period tracking apps putting our privacy at risk? Femtech World editor Sarah Sinclair reports.

Period‑tracking apps don’t just collect data on our cycle. Under the banner of “personalised health insights”, they log information such as sexual activity, contraception use, exercise, moods, and sometimes even our location. This can reveal intimate insights about an individual or group, from their political preferences and social habits to sexual and gender identity, mental health problems, and reproductive choices. 

The risks associated with this, should this data fall into the wrong hands, are highlighted in a recent report from researchers at the University of Cambridge. They include intimate partner violence, risks to job prospects, workplace monitoring, and health insurance discrimination.

According to the report’s lead author, Dr Stefanie Felsberger, apps that track menstrual cycle data are a “goldmine” for consumer profiling, the financial value of which is “vastly underestimated” by those who now rely on them as a part of daily life.

Last week, Flo Health, one of the world’s leading cycle tracking apps, settled a data privacy case in the US. The company was accused of unlawfully sharing users’ data with the social media platform Meta – claims which both Flo and Meta have denied. A settlement was reached, with no admission of wrongdoing, after the judge presiding over the case highlighted an “insurmountable” lack of evidence on behalf of the claimants. 

Flo Health has always refuted claims that it has shared users’ data with third parties. Even so, the case raises legitimate questions around how much we really know about where information about such intimate details of our lives could end up.

An analysis of 29 menstrual apps by researchers in Australia last year found that existing privacy laws were not adequately protecting users and their intimate information. While consumers are protected by GDPR laws in the UK and EU, police were recently issued guidance on how to check women’s menstrual tracking apps and medical records after sudden pregnancy loss.

In the US, following the fall of Roe v Wade, more restrictive abortion laws and less consumer protections could lead to reproductive data being weaponised against women in the form of private lawsuits, and insurer profiling, with location pings and private messages already being used in cases prosecuting women for illegal abortions. 

Global downloads for the three most popular apps were estimated to exceed 250 million last year. The fact that so many women and non-binary people now rely on this technology is indicative of a desire to have more control and agency over our health, whether that’s for general wellbeing, or the management of menstrual-related symptoms and long-term health conditions. 

Women are significantly underserved by existing healthcare systems, particularly when it comes to reproductive health. Many people use these apps in an attempt to plug the gaps left by the public health system, as a report by the Women and Equalities Committee (WEC) highlighted in the UK last year. They allow users to access vital information about their hormones, cycle characteristics and symptoms, which have been overlooked – potentially for years – by healthcare professionals. 

Menstrual cycle data is not only valuable from a financial perspective. More importantly, it is crucial for advancing research and improving health outcomes. As well as flagging concerns such as pain and heavy bleeding, it can also indicate signs of medical conditions, such as diabetes, thyroid disorders, polycystic ovarian syndrome, rheumatoid arthritis and irritable bowel syndrome, research shows. Scientists at femtech startups like Qvin are harnessing menstrual blood as a potential diagnostic tool for conditions such as endometriosis and for the early detection of cervical cancer. 

The fact that this data is not routinely collected by clinicians is not a careless oversight, but yet another symptom of a modern medical system in which women – and their bodies – have been entirely overlooked. Experts writing in the Lancet Obstetrics, Gynaecology, & Women’s Health, last month, said this data was an ‘underused but powerful tool’ for understanding women’s health, which should be routinely collected along with other measures such as BMI, blood pressure and cholesterol.

Separately, University of Cambridge researchers have urged public health bodies, including the NHS, to build their own state-governed menstrual tracking apps. 

These privacy-first platforms could collect valuable insights from menstrual cycle data, while ensuring users’ privacy with on-device storage and strict consent mechanisms. With transparent opt-in processes, anonymised data collected through public tools could also be used to advance much-needed research into women’s health. 

Following the publication of the NHS 10-Year-Plan and its promise of a shift from analogue to digital, there is potential for innovation in public health, with the mention of public-private partnerships to help deliver the tools that could make a real difference to women’s health outcomes. Perhaps the digital health record Wes Streeting has promised could also integrate data collected on a patient’s menstrual cycle. 

However, for now, it remains unclear exactly how and when this digital transformation will be delivered, and as with any structural overhaul in the public sector, it’s unlikely to be anytime soon.  

In the meantime, private innovators can lead by example with products that offer transparency, minimal data collection and medical validity. And consumers can support meaningful innovation by choosing apps with encrypted, on-device data storage.

Tech can be a force for good when it’s done with the right intention. In her latest impact venture, Amber Vodegal, the founder of the global Pregnancy Plus+ (which she sold to Phillips in 2017), is now developing a period-tracking platform that is privacy-safe and free at the point of use. 

Instead of storing data on external cloud servers, 28X will use on-device, fine-tuned open-source GenAI models with suitable guardrails to avoid sharing with third parties. Vodegal also plans to make the technology open-source to allow other developers to use and build on it.

Now that the medical and scientific value of menstrual data is finally being acknowledged, it deserves to be taken seriously by both private and public healthcare providers. This data can reveal intimate details about our lives, from our reproductive health to who we are as people. Treating it as a commodity – without our consent – is not only unethical, but undermines genuine efforts to address the gender health gap.

Opinion

Should men be talking about periods? Absolutely. Here is what every man should know

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By Ruby Raut, founder, WUKA

Every time we post a dad talking to his daughter about periods, the internet seems to split in two.

One side says: “This is brilliant. I wish my dad had spoken to me like this.”
The other says: “Why on earth are men talking about periods?”

And I always find that second reaction fascinating.

  • Because men might not menstruate, but they live in a world with people who do.
  • Your daughter might get her first period while you are the only parent at home.
  • Your teenage niece might bleed through her clothes while you are driving her somewhere.
  • Your girlfriend might wake up at 3am with cramps.
  • Your wife might suddenly realise she has run out of period products.
  • A colleague might bleed through her trousers during a meeting.
  • A girl you coach might quietly tell you she cannot play because she has started her period.

At some point in your life, there is a very good chance a woman or girl will have a period around you.

And at that moment, you have two options. You can be calm, informed and useful. Or you can stand there looking as if nobody ever taught you what a period actually involves.

So perhaps we need a Haynes manual for men and periods. Not a biology degree or a lecture.Just the information every man should probably know.

First: yes, men should know what a period actually is

Let us start with the basics. A period is not simply “a bit of blood once a month”.

Menstruation is part of the menstrual cycle. The lining of the uterus builds up and, if there is no pregnancy, that lining is shed.

That is the bleeding part. But for many women and girls, the experience can also involve cramps, back pain, headaches, bloating, tiredness, diarrhoea, tender breasts, mood changes and generally feeling pretty rotten.

Some barely notice their period. Others are completely floored by it. This is important because one of the least helpful things you can say to somebody struggling with their period is:

“Is it really that bad?”

You do not need to experience period pain to believe someone when they tell you they are in pain.

Second: if a girl tells you she has started her period, do not panic

This one is particularly important for dads.

Imagine your daughter gets her first period while Mum is out. What does she need from you? Probably not a horrified expression or you shouting across the house, “YOUR PERIOD HAS STARTED!”

She needs you to behave as though this is an entirely normal bodily function.

Because it is. Ask her what she needs. Find her a period product. If there is blood on her clothes, help her sort it out without making a huge fuss. If she does not know how to use a pad or period underwear, help her find clear instructions.

And please do not make jokes about her “becoming a woman”.

For a young girl, a first period can already feel confusing, embarrassing and frightening. Your job is not to make it into a ceremony but to make her feel safe. Sometimes the most useful sentence a dad can say is simply:

“Okay. No problem. What do you need?”

Third: learn what period products actually are

Pads.Tampons.Period underwear.Menstrual cups.Period swimwear. You do not have to develop strong opinions about all of them. You just need to know they exist.

If someone asks you to buy pads, do not behave as though you have been sent into a nuclear reactor without protective clothing.

Go to the period aisle. Text them a photo if you are unsure. Ask which absorbency they want. Buy the product. Come home.

And if you are the father of a daughter, having a few period products in the bathroom before she starts menstruating is a very sensible idea.

You keep toilet roll in your house before somebody needs it. Period products should not feel radically different.

Fourth: never announce a period stain

This should be basic human etiquette.

If you notice that a woman or girl has bled through her clothes, tell her quietly and discreetly.

Do not point, laugh, or whisper about it to someone else. And definitely never announce it to the room.

If you have a jumper or jacket she can tie around her waist, offer it. If there is somewhere she can clean up or change, help her get there. Then move on with your life.

Period leaks happen. The embarrassment surrounding them is often far worse than the actual blood.

Fifth: stop using periods as an explanation for every emotion

“Are you on your period?”

Four words capable of making almost any disagreement significantly worse.

Sometimes a woman is angry because she is angry and sometimes she disagrees with you because she disagrees with you. Sometimes you genuinely are being annoying.

Hormonal changes can affect mood for some people, but using menstruation to dismiss a woman’s feelings is patronising and incredibly unhelpful.

If your partner says she feels emotional before her period, listen to her. That does not permit you to diagnose every future disagreement as PMS.

Sixth: period pain is not something every woman should simply put up with

There is an extraordinary tendency to tell girls from a young age that painful periods are just part of being female. For some, mild cramps are manageable.

For others, period pain can be severe enough to disrupt school, work, sleep, exercise and everyday life. So if your daughter is doubled over in pain every month, repeatedly missing school, fainting, vomiting or unable to function normally, do not tell her to toughen up.

Take her seriously and help her seek medical advice.

Being a supportive dad does not require you to know what is causing her symptoms. It requires you to believe her when she says something is wrong.

Seventh: men talking about periods does not take anything away from women

This is perhaps the strangest objection to our Dads and Periods campaign. The idea that periods somehow belong in a conversation that only women are allowed to have.

Women should absolutely lead conversations about their own bodies and experiences. But understanding periods should not be restricted to people who menstruate.

We teach children about digestion even though they are not gastroenterologists and about first aid even though most people are not doctors.

We teach boys about pregnancy even though they will never be pregnant. Knowledge is not ownership. A father understanding periods does not make periods less female. It makes him a better prepared father.

A boy understanding periods does not mean he suddenly understands exactly what menstruation feels like. It means he is less likely to laugh when a girl gets a stain on her skirt.

A male coach understanding periods does not make him an expert on women’s bodies.

It means a teenage player might feel able to tell him why she needs five minutes off the pitch instead of inventing an excuse.

A male partner understanding periods does not mean he has to track every detail of his girlfriend’s cycle. It might simply mean that when she says, “My cramps are awful today,” his response is not, “Again?”

So should men talk about periods?

Yes.

But perhaps “talk” is not even the most important word.

Men should know about periods. Men should be comfortable hearing about periods. Men should know what to do when someone starts one unexpectedly. Men should know how to buy period products. Men should know not to make somebody feel ashamed about bleeding.

And fathers, in particular, should be able to talk about periods with their daughters without embarrassment.

Because there is a bigger point here. Girls learn very quickly which subjects make adults uncomfortable.

If Dad goes silent every time periods are mentioned, she notices. If he leaves every period conversation to Mum, she notices. If he wrinkles his nose at period products, she notices. And she may quietly absorb the message that this part of her body is something men find disgusting or embarrassing.

That is exactly the message we should be trying to dismantle.

At WUKA, we started our Dads and Periods campaign because we want fathers to feel capable of having these conversations.

Not perfectly. Not scientifically. Not with a PowerPoint presentation about the uterus over Sunday lunch. Just normally. Periods happen.

Roughly half the population will experience them at some point in their lives. The other half should probably know what they are.

And if the choice is between a dad who knows what a period is, knows where the period products are kept and can calmly help his daughter when she needs him, or a dad hovering helplessly outside the bathroom shouting, “SHALL I CALL YOUR MUM?”

I know which one I would rather have.

Learn more about WUKA at wuka.co.uk

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We built Ema like a nurse: Here’s why that matters

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By Claire Pettengill, science intern and Jade Anstine, clinical AI intern, Ema EQ

Every year, Gallup asks Americans which professions they trust most. Every year, nurses win. Not doctors. Not scientists. Nurses. And if you spend any time thinking about why, the answer is not hard to find.

Medicine runs on the nurse noticing first. In other words, the diagnosis follows the nurse sounding the alarm. They ask questions that feel human, not procedural. They explain what is happening in language you can understand.

And, critically, they know when something is beyond their scope and get you to the right person without making you feel like a burden for needing more.

That is the model we built Ema on.

When we set out to build an AI companion for women’s health, we could have just built something that answers questions efficiently. Pattern matching. Fast retrieval. Clinically accurate outputs.

Those things matter, and Ema does all of them. But accuracy alone does not build trust, and trust is the entire game in healthcare.

A woman asking about her postpartum recovery, her fertility, or her breastfeeding supply is not looking for a search engine. She is looking for someone who will take her seriously.

Women’s concerns don’t just need to be ‘validated’; they also need to be believed. Dismiss a woman’s pain as anxiety once, and you’ve taught her to doubt her own body.

The nursing model of care is built on exactly that premise. It is care that is shaped by her story. It asks about context and symptoms.

It treats the person as a whole, and it recognises that the right answer is sometimes a referral, not a response.

We trained Ema to escalate. That may sound like a small thing, but in AI, it is a deliberate design choice.

Most AI systems are optimised to answer and maintain engagement. Ema is optimised to help, and sometimes helping means saying “you need to speak to a clinician” and making that path easy.

This matters especially in women’s health, where the clinical trust gap is well-documented.

In a 2022 nationally representative survey of over 5,000 women, nearly 1 in 3 reported that their doctor had dismissed their concerns, and 15 per cent said a provider simply didn’t believe them.

Women are more likely to have their symptoms dismissed, their concerns minimised, and their pain undertreated. Among women under 35, nearly half reported at least one of these experiences.

They have had to learn how to advocate within systems designed for efficiency, built on men’s health.

With Ema, every conversation is an opportunity to make a woman feel heard, informed, and directed to the right level of care, neither over-triaged nor undertreated.

The goal is not to replace clinicians. It is to create a trustworthy first point of support that listens carefully, explains clearly, recognises limits, and helps women move toward appropriate care.

The nurses who top those Gallup rankings every year earn that trust through consistency. They show up, listen, follow through, and know their limits.

Ema is simply that trust, built into technology. That is the standard we hold Ema to: a trustworthy presence that knows when to answer and when to hand off.

Medicine spent a long time teaching women not to expect to be believed. Ema is built by the people who never stopped listening.

Bios

Claire Pettengill is a psychiatric nurse and DNP-PMHNP candidate at Columbia University School of Nursing, specialising in women’s mental health across the lifespan and algorithmic justice – ensuring the AI tools shaping women’s care are built to actually listen. She joined Ema EQ as a science intern focusing on clinical safety standards for evaluating AI in women’s health.

Jade Anstine is a senior nursing student at Gustavus Adolphus College looking to bridge the gap between frontline medicine and digital health innovation. He joined Ema EQ as a Clinical AI Intern to assess the Ema AI model across different clinical populations, specifically pediatrics and LGBTQ+.

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The technology exists: Why are women still waiting?

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By Jane Lewis, chief operating officer, chief financial officer and women’s health lead, ABHI

For years, the conversation around women’s health has rightly focused on recognition.

Recognition that women wait longer for diagnosis. Recognition that symptoms are too often dismissed or normalised. Recognition that healthcare systems have historically been designed around male biology, leaving gaps in research, evidence and care.

That recognition matters. But awareness alone will not improve outcomes.

The challenge facing women’s health today is no longer simply identifying the problem. It is acting on the solutions already available.

At ABHI’s Women’s Health Summit earlier this year, leaders from across healthcare, government, academia and industry came together to discuss the future of women’s health.

One message emerged repeatedly throughout the day: we do not have an innovation problem.

Across medical devices, diagnostics, digital health and genomics, there are already technologies capable of transforming outcomes for women.

From self-sampling approaches for cervical screening and non-invasive diagnostics to AI-enabled tools and advanced imaging, innovation is happening. The question is whether healthcare systems can adopt it quickly enough.

Too often, promising technologies become trapped in pilot programmes, fragmented procurement processes or lengthy implementation pathways. Evidence generation, commissioning and adoption are frequently treated as separate challenges rather than part of a single journey.

The consequence is that innovations capable of improving quality of life and reducing pressure on health services take years to reach the women who could benefit from them.

This matters because women’s health extends far beyond reproductive health.

Historically, many discussions have centred on fertility, pregnancy and gynaecological conditions. These remain critically important, but they represent only part of the picture.

Women experience cardiovascular disease differently to men. They are disproportionately affected by autoimmune conditions. They face distinct health challenges throughout their lives, from adolescence to healthy ageing.

                            Jane Lewis

Yet healthcare systems often continue to approach these issues in isolation.

A woman does not experience her health in separate compartments. Pregnancy, cardiovascular risk, menopause, mental health and musculoskeletal conditions are interconnected.

Healthcare systems need to reflect that reality through more integrated, life-course approaches to care.

There has never been a better opportunity to do so.

Across the NHS, the shift towards prevention, community-based care and digital transformation aligns closely with the needs of women’s health.

Women’s Health Hubs are already demonstrating the benefits of bringing services together around the needs of women rather than organisational boundaries. Digital technologies are helping to identify risk earlier and support more personalised care.

Innovation can help deliver all three of the NHS’s major transformation ambitions: moving from treatment to prevention, from hospital to community, and from analogue to digital care.

But innovation alone is not enough.

Closing the women’s health gap also requires us to address longstanding gaps in research and evidence.

Women remain underrepresented in many areas of clinical research, and sex-disaggregated analysis is not always applied consistently. The result is that clinical pathways and treatment decisions are often based on evidence that does not fully reflect female physiology.

Better data, stronger research participation and greater focus on female-specific and female-predominant conditions will be essential.

There is also a compelling economic case for action.

Women’s health is often framed as an equality issue, and equality remains central. But poor health affects workforce participation, productivity and economic growth.

Improving outcomes for women benefits not only patients, but employers, healthcare systems and wider society.

Yet despite this, women’s health innovation continues to attract only a fraction of the investment directed towards other areas of healthcare.

That is beginning to change.

Across the UK and internationally, momentum is building. Governments, investors, researchers and innovators increasingly recognise that women’s health is both a societal necessity and an economic opportunity.

The conversation has moved on significantly in recent years. Topics that were once overlooked are now firmly on the policy agenda.

The next challenge is ensuring that awareness translates into action.

The technologies exist. The evidence is growing. The policy direction is increasingly clear.

ABHI is increasingly taking this agenda beyond national boundaries. Through our engagement with international industry associations, policymakers and healthcare leaders, we are working to ensure that women’s health is recognised as both a health and economic priority.

We are helping to shape discussions on innovation, regulation, investment and adoption, while sharing lessons from the UK with partners around the world.

Whether addressing the gender health gap, improving access to diagnostics or accelerating the uptake of new technologies, international collaboration will be essential.

The challenge now is not recognising the need for change, but delivering it.

Women have waited long enough for acknowledgement of the problem. They should not have to wait any longer for the benefits of the solutions that already exist.

ABHI is the UK’s leading industry association for HealthTech. Its members, ranging from multinationals to small and medium-sized enterprises (SMEs), develop and supply technologies spanning everything from syringes and wound dressings to surgical robots, diagnostics, and digitally enabled healthcare solutions. ABHI’s 400 member companies represent approximately 80% of the UK HealthTech sector by value.

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