Whether or not the fluid will flow out of the uterine cavity after pregnancy has individual differences, and is also related to the amount of fluid in the uterine cavity and the location of the fluid in the uterine cavity. 1. Will flow out: relatively speaking, the location of the uterine fluid is close to the cervical os, or the bleeding is heavy, the uterine fluid volume, the chances of will flow out will be greater. 2. Not flow out of the situation: if the location of the uterine cavity fluid is relatively close to the upper part of the uterine cavity, or the amount of fluid in the uterine cavity is small, some of them will continue to not flow out of the situation, but may be slowly absorbed. If you have fluid in the uterus, you need to do ultrasound monitoring to see the changes of the gestational sac and the embryo, and do regular checkups, and if there is any discomfort, seek early medical attention.