Major UK study could be a ‘game-changer’ for heavy periods and endometriosis

A UK study will build a menstrual fluid biobank to help women get faster, better treatment for heavy periods.

Thousands of participants will provide menstrual fluid samples over three cycles using specially designed period pads. They will also use a daily tracking app and complete detailed questionnaires.

Researchers from the Universities of Exeter and Bristol will work with participants from two UK birth cohort studies, Children of the 90s and Born in Bradford.

Professor Gemma Sharp, of the University of Exeter, said that the study is set to be a ‘real game-changer’ for menstrual health research.

Sharp said: “We know that menstrual health is a key indicator of overall health, but a lack of high-quality data means it remains poorly understood and under-supported in healthcare.

“We also know that heavy periods can affect many aspects of daily life – for example, our recent research revealed an association between heavy periods, school attendance and lower GCSE attainment – so we urgently need new ways to support the millions of women affected by heavy periods more promptly and effectively.”

The CycleTrack study aims to create the world’s largest menstrual fluid biobank for people in their mid-30s.

By combining these samples with long-term health and genetic data, researchers hope to identify biological signals linked to differences in periods and related conditions.

Researchers hope the findings could support earlier diagnosis, better care plans and tools to identify risks including iron deficiency.

The study is part of The Missed Vital Sign, a programme led by Wellcome Leap that contributes to a broader global effort to reduce the time it takes a woman to receive effective treatment for heavy menstrual bleeding from five years to five months.

Up to 50 per cent of women worldwide experience heavy periods, which can significantly affect physical, emotional and social wellbeing.

Researchers say the work could also improve understanding of menstrual health more broadly and help inform future school and workplace guidance.