Staph is an overgrowth of trophoblast cells due to chromosomal abnormalities in the embryo. Serum human chorionic gonadotropin is essential for monitoring changes in the gravida. Serum human chorionic gonadotropin is a hormone secreted by embryonic trophoblast cells. When the embryo has chromosomal abnormalities, the trophoblast cells secrete large amounts of serum human chorionic gonadotropin. However, in normal pregnancies, serum chorionic gonadotropin also increases exponentially. Therefore, monitoring of serum chorionic gonadotropin in pregnant women is essential to differentiate normal pregnancy from gravida. It is generally accepted that serum HGH levels increase at an abnormal rate in patients with staphylococcal fetuses, which is much greater than in normal pregnancies. Therefore, it is crucial to monitor the rate of increase of serum HGH in pregnant women. There is generally no fixed value that can be used to rule out a staph pregnancy. It is important to note that the diagnosis of staphylococcal fetus also needs to be identified in conjunction with gynecologic ultrasound. The diagnosis of staphyloma cannot be made solely on the basis of serum human chorionic gonadotropin levels in the body. In conclusion, the serum HCGH value in the body does not exclude staphylococcal fetus. Abnormal value of serum human chorionic gonadotropin and abnormal gynecologic ultrasound suggesting abnormalities can be used to diagnose staph.