All disease begins in the gut.Attributed to Hippocrates, c. 400 BC
And every day, the gut files a report. Nobody reads it.
A treasure trove of health information passes through one room in every building, every single day — in what the body produces, and in how a person moves through the room to produce it. Within seconds of being generated, all of it is destroyed.
Not because it isn't valuable. Because there has never been anything there to notice.
Rygmi is working on changing that — passively, privately, and without asking a single person to change anything they already do.
Three streams go down that drain every day. Each one carries something.
People assume the interesting part of a bathroom is one fixture. It isn't. Three separate things leave that room daily — and taken together they describe gut health, hydration, and whether someone's ordinary routine is holding steady. None of it is captured anywhere today.
Stool
The most direct read on gut health there is, and the first thing any gastroenterologist asks about. Frequency, consistency and regularity are formal clinical measures — the Bristol scale exists precisely because this matters.
- Frequency and regularity over days and weeks
- Consistency and form, the standard clinical descriptor
- Gaps in the usual rhythm, and how long they last
- Effort and duration of a visit
Urine
Urinalysis is among the oldest and most frequently ordered tests in medicine, because urine reflects hydration, kidney function and a great deal besides. Outside a clinic, nobody has ever had a way to see any of it.
- How often, and at what times of day
- Overnight frequency — among the most informative and least discussed signals
- Hydration patterns across a week, not a moment
- Changes following a medication, illness or diet shift
Grey water
The sink and the shower are usually treated as plumbing. They are actually a record of routine: whether someone washed, when, how long, how consistently. Routine is one of the first things to change when health does.
- Handwashing and hygiene consistency
- Bathing frequency and duration over time
- Daily rhythm — morning and evening routine holding or slipping
- Overall water use as a proxy for daily activity
Three streams, produced by everyone, every day. Together they say more about how a person is doing than any single measurement taken twice a year.
What we're actually looking for is change
There is no universal normal here, and that's the point. Healthy people vary enormously in how often they go and what their week looks like — which is exactly why a population average tells you nothing and a personal baseline tells you a great deal. The useful signal is a person departing from their own pattern and staying there.
Frequency
How often, across a day and a week. What counts as normal varies widely between healthy people — but for any one person it is remarkably stable, which is what makes a change meaningful.
Timing, especially overnight
About half of adults over 65 are up at least once a night, and roughly a quarter twice or more. A change in that is rarely mentioned to anyone.
Consistency and form
The descriptor a gastroenterologist asks about first, and the one patients find hardest to recall accurately a week later.
Regularity and gaps
The rhythm itself. Days that break a person's usual pattern are exactly what a symptom diary is meant to record, and exactly what it most reliably misses.
Routine and self-care
Whether the ordinary shape of a day is holding. Washing, bathing and daily rhythm are among the first things to slip when something is wrong.
Steadiness and effort
How smoothly someone moves through the room, and how much work a visit takes. Both change gradually, and both are noticed late.
These aren't obscure diseases. They're common, they're consequential, and their earliest signs show up here.
We are not claiming to detect or diagnose any of them. We are pointing at something simpler and harder to argue with: for a striking number of serious conditions, the recognised early signs are changes in bowel or bladder habits — and those changes are currently noticed by nobody, for months.
Sources: American Cancer Society, Colorectal Cancer Facts & Figures 2026 and Siegel et al., “Colorectal cancer statistics, 2026,” CA: A Cancer Journal for Clinicians. CDC, Chronic Kidney Disease in the United States. Lewis et al., Gastroenterology 2023 / Crohn's & Colitis Foundation — 721 IBD cases per 100,000 adults. IBS prevalence per commonly cited international estimates. NIDDK, Digestive Diseases Statistics for the United States.
A very good early prompt, not an answer
We are not building something that tells you what is wrong with you. We are building something that notices when your own pattern changes, says so plainly, and helps you decide whether it is worth a conversation with someone qualified to answer. That is a smaller claim than the category usually makes, and a far more useful one.
What we're building
- A wellness and monitoring tool that learns your ordinary pattern over time
- A plain-language flag when something moves away from that pattern and stays there
- A prompt to seek a professional opinion when a pattern warrants one
- An objective record to bring to that appointment, instead of six weeks from memory
- Something that works for everyone in a household, not just the motivated one
- Quiet on the vast majority of days, because most days nothing has changed
The finding is never the number. It's the departure from your own normal.
Population averages are close to useless here — everyone's normal is different, and that's fine. What matters is a person moving away from the pattern they have held for weeks, and staying there. Which means the whole value depends on something having quietly learned that pattern long before anything went wrong.
- Trends, not readingsA drift away from an established personal baseline — not a number needing interpretation, and not a score nobody can explain.
- Nothing to log, everNo entry, no diary, no reminder. The moment a record depends on someone remembering, it stops being a record.
- Explainable, alwaysEvery flag comes with a plain-language reason a person or a clinician can act on. No black boxes, no wellness scores.
- Quiet by defaultMost days nothing happens and nothing is said. A system that constantly finds something is a system nobody keeps.
Illustrative — shown to convey the intended concept, not a released product.
The same room. Three very different reasons to care what it knows.
The signals are identical. What changes is who is reading them and what they can do next. At home it is the first objective answer to "is this normal?" For someone managing a diagnosed condition it is the first real measurement they have ever had. In a care setting it is an early prompt that can prevent a hospital transfer.
Everyday health at home
For anyone who wants to know whether what they're experiencing is normal
Most people never enter a care setting. They live at home, notice something has changed, wonder whether it matters, and have no way at all to find out. More than half of adults conclude that discomfort, bloating and irregularity are simply part of being a person — not because that's true, but because they have nothing to compare against.
Wearables were meant to close gaps like this, and for some signals they did. But every one of them asks something of the wearer: charge it, wear it, remember it, stay interested. Adherence collapses within months, and the data stops precisely when a long baseline would begin to be worth something.
The advantage here is doing nothing at all. No device, no log, no habit to maintain — which means a record still there in year three, and a real answer to whether this week is different from last month.
- A picture of their own normal, built quietly over weeks rather than guessed at
- A clear signal when routine, hydration or gut patterns drift away from that baseline
- An honest read on whether a diet, a supplement or a new medication changed anything
- A nudge to get something looked at — with a record to bring along
- Reassurance most of the time, which is the outcome people actually want
Living with a diagnosed condition
For people with IBS, IBD, chronic constipation or incontinence — and those recovering from GI surgery or managing a chronic illness
These patients are handed a paper diary and asked to complete it honestly, in detail, for weeks at a time. It is among the least reliable instruments in medicine, and it is used to manage some of its most disruptive conditions. Everyone involved knows the diary is imperfect. There has simply been no alternative.
The consequence is that treatment decisions rest on remembered impressions. Whether a flare is improving, whether a medication change helped, whether a trigger is real — all of it depends on how a patient felt about the last three weeks when asked in a ten-minute appointment.
A continuous, objective record would be the first real measurement many of these patients have ever had — not a diagnosis, and not a replacement for their clinician, just an accurate account of what actually happened between visits.
- A continuous record that replaces the symptom diary rather than adding to it
- Flare patterns and duration captured as they happen, not reconstructed afterwards
- A clear before-and-after when a treatment or diet changes
- Objective data to bring into an appointment, so the visit starts from facts
- Fewer wasted months on a change that was never working
Senior living & skilled nursing
For executive directors, directors of nursing, and clinical operations teams
This is where the stakes are highest and the current tooling is weakest. Communities are already accountable for exactly this information — bowel and bladder patterns, hydration, fall risk — and are already surveyed on it. The requirement is met today with a paper chart, a periodic weigh-in, and a resident's willingness to speak up.
The cost of that gap is not abstract: avoidable hospital transfers, incident reports that could have been prevented, hours of staff time spent on documentation nobody fully trusts, and difficult conversations with families about something that had been building for weeks.
The bathroom is also the highest-risk room in any community. Research puts 14.3% of fall-related hospitalisations in older adults during toileting, with 63.3% of those between midnight and 6am — the hours with the fewest staff and the least visibility.
- Early prompts on the changes that precede a UTI, dehydration or a constipation problem
- Fall-risk drift visible weeks ahead, from how residents move in the highest-risk room
- Bowel and bladder documentation that doesn't depend on memory or paper
- A view of routine and self-care holding steady, resident by resident
- Plain-language reasoning behind every flag — defensible in a care conference or a survey
Sources: Oshi Health national survey, January 2026 (n=2,091 US adults). Crohn's & Colitis Foundation / Lewis et al., Gastroenterology 2023. NIDDK, Digestive Diseases Statistics for the United States. Zou et al., BMJ Open 2023;13:e065544 (n=419, mean age 78.8). Assisted living and skilled nursing counts per US industry statistics compilations, 2026.
Privacy isn't a feature we added. It's the reason this can exist at all.
This is the most private room there is, used by people at their most vulnerable, on the most sensitive subject anyone can name. Anything that feels like surveillance does not get installed — no matter how accurate it is, and no matter what it might have caught. Consent is the real gate, and it is where a great deal of otherwise excellent health technology has quietly died. So we started there rather than arriving there.
Nothing that watches. Nothing that listens.
No camera. No microphone. The fastest way to make anything in a bathroom unadoptable is to put either one in it — everyone we have spoken to raised this before we did. A product half a household or half a community refuses can never become anyone's health record.
It has to fit the bathroom that's already there
Not a renovation. Not a plumber. Not a work order or a capital request. Anything that requires the building to change around it ends up installed in one demo room and nowhere else — which is precisely why good ideas in this category have never scaled past a pilot.
Zero behaviour change, for anyone
Not for the person, and not for whoever supports them. If it depends on someone remembering a step or staying motivated, the data stops — usually around month three, and it stops first for exactly the people who need it most. Adherence isn't a discipline problem. It's a design constraint.
Dignity is a human factor, and it's measurable
Whether someone will keep living normally around a thing is not a soft consideration — it is the single variable that decides whether any of this works. We treat how it feels to use that room with the same seriousness as anything clinical. The two are not in tension; one enables the other.
Sleep got a ring. Glucose got a patch. Heart rate got a watch. The gut got a paper diary and a request to remember last Tuesday.
Every one of those categories became manageable the moment measurement stopped depending on someone's memory and started happening on its own. There is no good reason this one should be different.
We're looking for forward-thinking people to help us get this right
We are early, and we would far rather build this with people who understand the problem than at them. Clinicians, care operators, researchers, investors — and anyone who has tried to answer a question about their own health and found there was simply no way to.
What you genuinely struggle to see. What would have to be true before you'd allow anything into a bathroom. Where our thinking is off. Feedback at this stage changes what actually gets built.
pratik@rygmi.com