Frequent fetal movements at 5 months may be due to spontaneous fetal activity or considered to be due to fetal distress. Frequent fetal movement in the 5th month of pregnancy is mostly considered to be caused by the increased spontaneous activity of the fetus in the uterine cavity. If there are no other uncomfortable symptoms, it can be observed for the time being. If pregnant women continue to experience frequent fetal movement, it should also be considered as a result of fetal distress. Generally, frequent fetal movement occurs in the early stage of fetal hypoxia, and gradually disappears with the decrease of fetal movement. If this kind of situation occurs, pregnant women need to carry out electronic fetal heart monitoring, fetal blood gas analysis, placental function examination, fetal umbilical artery blood flow measurement and other tests, so as to clarify the cause of the disease. There are many reasons for frequent fetal movement at 5 months of age. Pregnant women are advised to go to regular hospitals to find out the cause of the problem.