Fetal movement is not necessarily a son. Fetal hyperactivity during pregnancy may be a normal physiological phenomenon, or it may be a lack of oxygen in the fetus, and it has nothing to do with the sex of the fetus, both boys and girls may have symptoms of hyperactivity. The sex of the fetus is determined by the genes carried by the sperm during pregnancy, and it is not possible to determine that it is a son on the basis of the symptom of excessive fetal movement, which has no scientific basis. During pregnancy, women should pay close attention to the changes in fetal movement and observe the development of the fetus at any time. It is not recommended to pay too much attention to the gender of the fetus, as long as the fetus is healthy. During pregnancy, if you suddenly experience frequent fetal movements that are inconsistent with the usual, you need to consult a doctor to clarify the cause, so as not to delay the condition.