Pelvic fluid itself does not affect women’s menstruation, but the causes of pelvic fluid can affect women’s menstruation. In clinical practice, the causes of pelvic fluid in women are mainly in the following aspects: firstly, physiological pelvic fluid, pelvic fluid is very small, mostly due to lubricating fluid secreted by pelvic organs, which will not affect menstruation and will not damage the patient’s body, so it does not need to be treated. Second, pelvic effusion caused by inflammatory diseases, inflammation can affect menstruation, inflammation and congestion can lead to heavy menstruation and prolonged menstruation. When serious endometrial adhesion or damage is caused, it can cause patients to have heavy menstruation or even amenorrhea; third, pelvic effusion caused by tuberculosis, pelvic tuberculosis, which can easily lead to damage or adhesion of pelvic tissues, and most often cause heavy menstruation or amenorrhea; fourth, pelvic effusion caused by neoplastic diseases, neoplasm diseases can affect menstruation, which can easily lead to heavy menstruation, prolonged period, vaginal bleeding and so on. prolonged, irregular vaginal bleeding and so on.