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Researchers have found that many women with IBS report worsened symptoms during their menstrual period, suggesting that the female sex hormones, oestrogen and progesterone, can increase IBS symptoms. Research also suggests that the speed at which the bowel contracts to move food along the digestive tract varies at different stages of the menstrual cycle as the relative levels of these two hormones alter. The hormones produced in the digestive tract, including cholecystokinin, which stimulates gallbladder contractions after a meal, and motilin, which helps regulate bowel motility, have been suspected of triggering IBS symptoms in some people.


If you are interested in other gastrointestinal-focused information and intervention websites developed and hosted at
Swinburne University of Technology,
please go to:

IBDclinic.org.au for individuals with Inflammatory Bowel Disease

Gastroparesisclinic.org for individuals with Gastroparesis


This website and its content is not intended or recommended as a substitute for medical advice, diagnosis or treatment. Always seek advice of your own physician or other qualified health care professional regarding any medical questions or conditions.

© 2014 Swinburne University of Technology | CRICOS number 00111D