CycleTrack study launches largest menstrual fluid biobank in the UK

Researchers from the Universities of Bristol and Exeter have launched the CycleTrack study, a major project aimed at creating the world’s largest menstrual fluid biobank. The initiative seeks to improve the understanding of heavy menstrual bleeding (HMB), endometriosis, and fibroids by collecting real-time health data and menstrual fluid samples from thousands of women across the United Kingdom.

Participants will provide samples over three cycles using specialized pads, while also utilizing a daily tracking app and completing questionnaires. By combining these biological samples with long-term genetic and health data, researchers hope to identify biological signals that can lead to earlier diagnoses, better care plans, and new tools to identify risks like iron deficiency.

The study is part of a broader program led by Wellcome Leap titled ‘The Missed Vital Sign’. This global effort aims to reduce the time it takes for women to receive effective treatment for heavy menstrual bleeding from an average of five years to five months. Heavy periods affect up to 50% of women worldwide and can significantly impact physical, emotional, and social wellbeing.