It is generally not possible to determine whether it is a boy through a micro-anomaly, which is mainly used to check for fetal malformations, and the sex of the fetus is determined by the male sex chromosomes. Minor aberration is through ultrasound examination of fetal development, amniotic fluid, placenta maturity, which can help screen the fetus for chromosomal abnormalities, congenital malformations. The sex of the fetus is determined by the male sex chromosome. If the father’s Y chromosome combines with the female’s X chromosome, the sex of the fetus is usually male. If the father’s X chromosome combines with the female’s X chromosome, the sex of the fetus will be a girl. It is recommended that pregnant women who suspect ectopic pregnancy, abnormal amniotic fluid volume, or premature rupture of membranes or loss of fetal movement can go to the hospital for a mini-detectoral examination when they are 28~34 weeks pregnant. It is not possible to determine whether it is a boy by having a micro-anomaly test, and generally the state prohibits non-medical behavior of fetal sex identification. It is recommended that pregnant women need to wear loose clothes when having a micro-anomaly test, and keep their mood relaxed to avoid stress. In addition, during pregnancy to ensure enough rest, go to the hospital regularly for maternity checkups, diet needs to eat milk, green vegetables and other foods rich in protein and vitamins.