Pregnant women always have the feeling of falling abdomen, may be a normal physiological reaction, may also be caused by the first sign of miscarriage, need to be specifically analyzed. 1. Normal physiological response: after pregnancy, if the pregnant woman walks for too long or stands for too long, it may lead to uterine congestion and edema, thus causing the feeling of falling abdomen. 2. Pre-eclampsia: Pregnant women who have a feeling of falling abdomen may also be due to pre-eclampsia, which is a condition in which a pregnant woman may feel a feeling of swelling in the lower abdomen, abdominal pain, and a small amount of bleeding from the vagina. Pregnant women always have a feeling of falling abdomen may also be caused by other reasons, it is recommended that once the patient found himself in a similar situation, timely medical improvement of the relevant examination, standardized treatment.