Taurean fluid, also known as pelvic effusion, is clinically divided into physiological and pathological effusion. Usually physiological pelvic effusion can disappear on its own, while pathological pelvic effusion is not easy to disappear on its own. Physiological pelvic effusion can appear after ovulation or during menstruation, and most of them disappear naturally with the end of menstruation and usually do not require treatment. In the case of pathological pelvic effusion, there are many reasons for its formation, such as inflammation of the fallopian tubes, endometritis, pelvic inflammatory disease, etc. It can also be caused by conditions such as rupture of the corpus luteum or pelvic abscess. In this case, after the diagnosis is confirmed by examination, the original disease needs to be treated, which can make the pelvic fluid gradually disappear. When the pelvic fluid is more and not reduced by anti-inflammatory treatment, but increased, consider the possibility of ovarian tumor, fallopian tube tumor, etc. At this time, patients should promptly consult the doctor and give the most appropriate treatment.