The presence of a small amount of pelvic fluid during pregnancy is a physiological phenomenon and is not a cause for concern. It is because the uterus gradually enlarges after pregnancy and presses on the pelvis, and the venous return is impeded. Symptoms will gradually disappear after delivery, such as the presence of a large amount of pelvic fluid should be noted, considering the inflammation caused by adnexitis, pelvic inflammatory disease can cause pelvic fluid, can be ultrasound examination, can be appropriate to take cephalosporin antibiotics, so as to avoid aggravation of inflammation caused by abdominal pain, can not be taken privately. Pelvic fluid during pregnancy, pay attention to vulvar hygiene, can use warm water to rinse the vulva, worn intimate apparel should be sterilized, pay attention to diet, eat less stimulating food, otherwise it will lead to aggravation of the condition, eat more protein-rich food, enhance physical fitness, and regular pregnancy checkups.