Whether to have absolute bed rest in pregnancy with uterine fluid depends on the severity, if there is a lot of fluid indicating heavy bleeding, it is best to have bed rest. The presence of uterine fluid in pregnancy, mainly may be bleeding around the gestational sac, suggesting that there may be preeclampsia, need to choose whether to absolutely bed rest according to the amount of fluid. 1. Do not need to stay in bed: If the effusion is small and there is no abdominal pain or even bleeding, you can take oral medication to protect the fetus, and you can use progesterone preparations and other fertility preservation treatments under the guidance of your doctor; you do not need to stay in bed absolutely, and you can do light physical activities. 2. Need to stay in bed: if the uterine cavity fluid, and accompanied by abdominal pain, bleeding, we must absolutely bed rest, to keep the bowel movement, so as to avoid bleeding, fluid aggravation. Pregnant with fluid in the uterus should go to the hospital in time for examination and treatment under the guidance of the doctor.