History and current situation of fetal gender prediction The history of fetal gender prediction can be traced back to ancient times. At that time, some people used women\’s abdominal shape, induced abortion and bleeding during pregnancy to guess the gender of the fetus. In modern times, with the advancement of science and technology, people have mastered more fetal gender prediction technologies, including ultrasound examination, amniocentesis, chorionic villus sampling, etc. Among them, ultrasonic examination is the most common