Here's Why Periods Make You Gasy

Do you find yourself spending way too much time in the bathroom once a month?
Many people get gas or diarrhea just before or during their period.
I can give you a one-word answer: prostaglandins. Dr. Ellen Stein, Johns Hopkins
Prostaglandins help the cervix to open during menstruation.
As your uterus is squeezing out its contents, your intestines may get the idea to do something similar.