Diarrhea in your menstrual phase

Diarrhea is looser or more frequent stools, often at the start of your period. In your menstrual phase it tends to flare because prostaglandins that contract the uterus also speed up the gut, which can loosen stools.

What's happening in your menstrual phase

Estrogen and progesterone are at their lowest. Energy dips and your body wants rest, warmth, and iron-rich, easy-to-digest food.

What to eat

How to move

keep movement gentle and rest if you feel depleted.

Quick relief

  • Stay hydrated to replace lost fluids.
  • Favour soothing, soluble-fibre foods like oats.
  • Limit caffeine and very fatty food on heavier days.

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Frequently asked questions

Why do I get diarrhea in my menstrual phase?

In your menstrual phase, prostaglandins that contract the uterus also speed up the gut, which can loosen stools.

What should I eat for diarrhea?

Foods that help include oats, ginger, sweet potato, Greek yogurt.