Why can't you do abdominal exercises during your period?

Patient's question:

No

Doctor's answer:

Avoid strenuous exercise, especially activities that increase intra-abdominal pressure, such as long jump, jump rope, sit-ups, and long-distance running. Sudden increases in intra-abdominal pressure can not only lead to changes in bleeding volume but may also cause gynecological infections. During menstruation, strenuous exercise may cause menstrual blood to flow backward from the uterine cavity into the pelvic cavity, leading to endometriosis, which can cause menstrual cramps. Over time, it may even result in infertility.