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    How to Get Rid Of Diarrhea During Your Period

    Updated 03 February 2023 |
    Published 02 January 2019
    Fact Checked
    Kate Shkodzik, MD
    Reviewed by Kate Shkodzik, MD, Obstetrician and gynecologist
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    Why do I get diarrhea during my period? This is a question we often get from our users. Today, we investigate the causes of diarrhea during your period and find out how to get rid of diarrhea on your period or before it.

    Diarrhea before your period

    Cramps, bloating, back pain, sore breasts, and mood swings are all common symptoms of premenstrual syndrome (PMS). Diarrhea is another symptom you might experience before getting your period. 

    If you’ve found that your diarrhea appears before your period, you’re not alone. Many people experience severe diarrhea with PMS. Your menstrual cycle and digestive system are closely linked.

    Track your period and symptoms to see your unique cycle patterns.


    Why do you get diarrhea before your period?

    Levels of progesterone and estrogen change during your menstrual cycle. There are receptor cells for these hormones in your gastrointestinal tract. This suggests that the gastrointestinal tract is designed to sense and react to these hormonal changes. 

    Apart from hormones, another cause for diarrhea before your period is the increased amount of prostaglandins. Prostaglandins can make the muscle that lines your bowels contract and push waste out quickly.

    Diarrhea a week before your period: is it normal?

    Most premenstrual symptoms begin one to two weeks before your period. They might last up to seven days after the start of menstruation.

    When your period is about to arrive, digestive symptoms tend to fall to the extremes. Some people get constipated, and others have diarrhea. One study has shown that 73 percent of women experience at least one of the primary gastrointestinal symptoms either before or during their period. Roughly 24 percent of women said they experience diarrhea before their period, while 28 percent experience diarrhea during their period. 

    Diarrhea right before your period: a symptom of PMS?

    Experts in gastroenterology have found that you are more likely to experience bloating and constipation in the days of your cycle following ovulation. 

    However, things start to change as you get closer to your period. In the days right before your period, you are more likely to experience diarrhea and abdominal pain. Diarrhea right before your period is normal. In most cases, a healthy diet and medicine can make the symptoms go away.