Endó
Match your symptoms against peer-reviewed endometriosis research, then log them day by day — so when you walk into a doctor's office, you arrive with a record instead of a guess.
See what's insideAnswer a 56-symptom questionnaire and see how your pattern compares to the symptoms women with diagnosed endometriosis actually report.
Track pain, symptoms, mood and period flow day by day, with your cycle day and phase alongside them.
Your answers on remedies, diet, sleep and life impact become concrete action steps, not generic advice.
Months of structured symptom history in one place — the kind of record that's hard to reconstruct from memory in a ten-minute appointment.
Endó's symptom matching is drawn from one specific peer-reviewed study:
Goldstein, A. & Cohen, S. (2023). Self-report symptom-based endometriosis
prediction using machine learning. Scientific Reports, 13, 5499.
doi.org/10.1038/s41598-023-32761-8
The authors surveyed 886 women — 474 with a diagnosis of endometriosis and 412 without — asking each of them which of 56 symptoms they had experienced in the past month. That gave them, symptom by symptom, how much more often each one shows up in the diagnosed group than the undiagnosed one.
Those published per-symptom frequencies are what Endó's questionnaire is built on. When you answer, the app compares your pattern against them and shows you which of your symptoms are the ones most strongly associated with endometriosis in that study — and which are not.
The study was approved by the ethics committee of Ariel University, and is open access, so you can read the whole thing yourself. Its own limitations are worth knowing: participants were recruited through Facebook groups rather than clinics, and some women in the undiagnosed group may have undiagnosed endometriosis.
Why this matters: the average time from first symptom to endometriosis diagnosis is 6 to 10 years. Recognising your symptom pattern early, and having it written down, is one of the few parts of that timeline you can actually influence.
Endó is an educational symptom-matching and tracking tool, not a medical diagnosis. A symptom match is not a result, a risk score, or a prediction. Only a qualified clinician can diagnose endometriosis — always talk to a healthcare professional about your symptoms.