Pelvic inflammatory disease does not affect a woman’s menstruation. Patients with pelvic inflammatory disease tend to experience back pain and abdominal pain during menstruation, but it does not affect the volume, color, or cycle of menstruation. If pelvic inflammatory disease is not treated in a timely manner and causes inflammation of the endometrium, it can affect the menstrual volume, with excessive and scanty periods, darkening and darkening of the menstrual color, as well as significant dysmenorrhea and lower abdominal pain. Long-term inflammation in the pelvic cavity can cause stimulation of the endometrium, which can easily affect blood circulation and normal endometrial exfoliation and reproduction, leading to irregular menstruation, depending on the individual’s physical condition. It is recommended that patients with pelvic inflammatory disease be treated promptly to avoid long-term effects on menstruation caused by other diseases, and pelvic inflammatory disease can form chronic inflammation if not treated promptly.