Whether the decrease in fetal movement in the 8th month of pregnancy is normal or not depends mainly on the degree of decrease in fetal movement. If the fetal movement is only slightly reduced, it is often due to the fact that the fetus is getting bigger and bigger, the space in the belly is getting smaller and smaller, and the fetus is already in the late stage of pregnancy in the 8th month, most of the fetus is already in the pelvis, after the pelvis, the fetus is restricted in the uterus and cannot move freely in the uterus, so the fetal movement will be physiologically reduced in the 8th month of pregnancy, which is a normal physiological phenomenon. If the fetal movement decreases obviously and suddenly, and the number of fetal movements is less than 20 times in 12 hours, this situation is generally abnormal and indicates the risk of fetal hypoxia, so you should immediately go to the obstetrics department for fetal heart monitoring and ultrasound examination to clarify the fetal status.