There is no rigid requirement for lying down or lying on the side for preeclampsia. In case of labor-induced preeclampsia, bed rest is recommended under the premise of ensuring smooth bowel movement, but it is necessary to prevent venous thrombosis of both lower limbs, and proper bedside activities and ankle pump exercises in bed are more important. In addition to proper lying down rest, you should also get out of bed properly, which can help blood flow out of the vagina and avoid vaginal inflammation or infection in the vagina, so it is okay to lie flat or on your side for pre-eclampsia miscarriage.