The so-called pelvic effusion refers to the accumulation of fluid in the rectal recesses of the uterus, which leads to pelvic If a woman’s pelvic effusion is found after the follicle is discharged and the ultrasound exam reveals that although the pelvic effusion is 30 mm at this time, there is no pain in the lower abdomen, as well as cramping and other uncomfortable manifestations, then it is often considered to be a physiological pelvic effusion caused by the inflow of follicular fluid into the pelvis, which is generally able to The actual physiological pelvic fluid is usually able to heal on its own, so there is no need to carry out any treatment. If a woman has persistent pain in the lower abdomen and is found to have a pelvic fluid of 30 mm on ultrasound, it is often considered to be an inflammatory fluid caused by pelvic inflammation, so this pelvic fluid of 30 mm is not self-curing, but requires antibiotics for anti-inflammatory treatment, usually requiring antibiotics for about 7 to 14 days to cure the pelvic inflammation. If a woman is found to have pelvic effusion of 30 mm with abnormal masses on the ovaries, the boundaries of the masses are not clear, and there are disorganized light clusters and dots in the masses, and there are rich blood flow signals, then it is often considered to be pelvic effusion caused by ovarian cancer, and there is no way to cure pelvic effusion on its own. Moreover, even if surgery is performed, complete treatment may not be possible, because metastasis of cancer cells may have already occurred.