Pelvic effusion is mainly caused by the presence of inflammatory exudate in the pelvis, which accumulates at the very bottom of the pelvis. Most pelvic effusions are inflammatory exudates, but some are not, including tumors or tuberculosis, etc. Pelvic effusion is inflammatory effusion, which affects patients mainly in the following ways: 1. Affects patients’ normal life, pelvic effusion often causes obvious anal cramps, lumbosacral aches and pains in the lower abdomen, and there may also be sudden severe pain in the lower abdomen, which gradually turns into cramps and swelling, and may be aggravated after activities, which very much affects normal study and life; 2. Leads to infertility, if there are chronic infectious lesions, which may be in the gynecological system, such as ovarian and tubal inflammation, or tuberculosis or tumor, which may cause tubal adhesions and tubal obstruction leading to infertility if not detected and treated in time; 3. Incomplete blockage of the fallopian tubes, which can easily lead to ectopic pregnancy; 4. Pelvic fluid can also endanger other organs, and if the patient is not treated in time, it can adhere the uterus, fallopian tubes and surrounding connective tissues in the pelvis together and will Frequent pain in the lower abdomen, also often referred to as pelvic pain.