Uterine fluid greater than 2 centimeters during pregnancy is considered more serious. Uterine fluid is divided into physiological and pathological conditions, the amount of fluid 1 cm is usually its demarcation line, more than 1 cm is usually pathological, and vice versa is physiological. Under normal circumstances, when a pregnant woman’s uterine fluid is greater than 2 centimeters, it is considered a more serious situation. Physiologic pelvic fluid usually does not require special treatment, most of it can be absorbed, and usually does not cause discomfort to pregnant women; while pathologic pelvic fluid can cause pain in the lower abdomen and lumbosacral region. For pregnant women, miscarriage or preterm labor may occur in severe cases. Therefore, if pathologic pelvic effusion occurs during pregnancy, it is recommended to keep the fetus alive, and if abnormalities occur, it is recommended to consult a doctor in a timely manner.