menstruation cause of diarrhea


About a third of women experience diarrhea around the time of their period. So, if you’re one of them, rest assured it’s totally normal.

While women with IBS are more prone to monthly bouts of diarrhea, perhaps along with constipation and bloating, women who don’t have IBS can also suffer from these symptoms when menstruating.

What causes Period Diarrhoea?

Although it’s not fully understood, it’s believed that the hormonal changes taking place during your period are the cause of menstrual-related diarrhoea.

In particular, the culprit could be a chemical called prostaglandin, which is released during menstruation. Prostaglandin causes the muscles in your bowels to contract and this may lead to diarrhoea and stomach pain when you get your period.

How to Manage Menstrual Diarrhea?

If you suffer from diarrhoea during your period, there are several things you can do to manage your condition. 

Read our tips for managing menstrual-related diarrhea

How to Treat Diarrhoea during Periods/PMS?

If your periods give you regular acute episodes of diarrhoea, you can treat it every time. IMODIUM® works in harmony with your body to help it get back to its natural rhythm, gently restoring the normal pace of your digestive system. You needn’t worry that you might come to rely on IMODIUM® or become resistant to its efficacy, as there’s no medical evidence at all to suggest this might happen.

Know how to Treat Diarrhea from Periods or PMS


IMODIUM® Capsules are proven and trusted for stopping diarrhea.

IMODIUM® Instants dissolve instantly on your tongue, so they’re perfect for when you’re on the go.

Where to buy IMODIUM®

It’s easy to find IMODIUM® in pharmacies. You don’t need a prescription, so you can buy it over the counter.