Pseudocontractions are irregular contractions produced by the uterus, which may cause symptoms of pain in the lower abdomen, but fetal bulging is caused by the movement of the fetus and does not cause pain in pregnant women. 1. False contractions: False contractions are caused by irregular contractions of the uterus. Pregnant women may feel pain in the lower abdomen during false contractions, and the duration of pain varies depending on the duration of the false contractions. 2. Fetal bulge: Fetal bulge is caused by the activities of the fetus in the uterus, for example, the fetus’s foot kicks the pregnant woman, you can see an obvious bulge on the pregnant woman’s stomach. However, the fetal bulge usually does not cause pain to the pregnant woman, and lasts for 2~3 seconds, the fetal bulge will disappear. In the clinical situation, if a pregnant woman has severe false contractions, or if the false contractions are accompanied by vaginal bleeding, she should go to the hospital in time for treatment.