Occasional crying in late pregnancy has little effect on the fetus, and prolonged crying may lead to fetal hypoxia and preterm labor. 1. Fetal hypoxia: crying in late pregnancy may lead to hypoxia and high blood pressure, which may easily cause fetal hypoxia, and in severe cases, may lead to fetal distress. 2. Preterm labor: the emotions of pregnant mothers are related to their own bodies, long-term depression, frequent crying, poor mental state, emotional excitement, may lead to the emergence of contractions, the occurrence of preterm labor or preterm labor in late pregnancy. During pregnancy, it is recommended that expectant mothers should keep their moods happy and avoid depression and irritability. If discomfort occurs during the period, go to the hospital in time for treatment.