why do i poop more on my period

People tend to poop more on their period due to hormonal changes, especially the release of prostaglandins. Prostaglandins are fatty acids released during menstruation that cause the uterus to contract and shed its lining, leading to bleeding and cramps. These prostaglandins also affect the smooth muscles of the colon, making them contract more and move contents faster, which can increase bowel movements and cause looser stool or diarrhea. Additionally, progesterone levels drop at the start of the period, which removes the usual slowing effect progesterone has on the gut, further increasing gut motility and bowel movements. This combination of hormonal effects explains why pooping more and having softer stools is common during menstruation.