Usually, the number of fetal movements should be at least 3-5 times per hour. However, the number of fetal movements varies from person to person due to various factors such as the growth and development of the fetus, the amount of amniotic fluid in the uterine cavity and the body type of the pregnant woman. Most of the pregnant women can feel the fetal movement in 18-20 weeks of gestation, and then the number of times increases gradually and the amount of activity becomes more and more, and it is most active in 32-34 weeks, but gradually decreases at the end of pregnancy, i.e. after 38 weeks. The fetal movement count in 12 hours is commonly used clinically, the specific method is to count the fetal movement for 1 hour in the morning, in the middle and in the evening, the number of fetal movement in 3 time periods is added up by 4, that is the number of fetal movement in 12 hours, the fetal movement count > 30 times/12 hours is normal. The number of fetal movements should be counted as one continuous movement of the fetus, and one continuous movement of the fetus should not be counted as multiple fetal movements. During pregnancy, pregnant women should cooperate with the doctor and count the fetal movements regularly, and in the middle and late pregnancy, i.e. after 28 weeks, they should count the fetal movements regularly. If the fetal movement count is less than 20 times in 12 hours, we should pay attention to it and check the fetal heart monitoring closely. If the fetal movement count is less than 10 times in 12 hours, intrauterine distress may occur due to fetal hypoxia. Therefore, the number and strength of fetal movements can directly reflect the safety of the fetus. If the fetal movement decreases or is very strong, you should be alert and go to the hospital in time. You can increase the blood oxygen level in the pregnant woman’s body through oxygen and changing the position to improve the fetal hypoxia.