What causes diarrhea during menstruation?

Diarrhea during menstruation, commonly referred to as "period diarrhea," may be caused by hormonal changes during the menstrual cycle. Before the onset of menstruation, the uterine lining prepares to shed, estrogen levels decrease, and prostaglandin levels rise. Prostaglandins are substances that help the uterus contract and expel the lining, but they can also affect the intestines by increasing bowel motility, leading to diarrhea. In addition, emotional fluctuations and stress that often accompany menstruation may indirectly impact the normal function of the digestive system. Some women may also become more sensitive to certain foods during their period, which could cause gastrointestinal discomfort. If menstrual diarrhea is severe or lasts for an extended period, it may affect quality of life. In such cases, it is recommended to consult a doctor to determine whether there are any underlying health conditions, such as irritable bowel syndrome, and to seek appropriate treatment.