At least two years of contraception after gravida clearance, after the post-operative examination, the blood HCG has been in normal condition, in the clinical two years after the pregnancy can be considered. Before getting pregnant, we must do blood HCG test, ultrasound, chest X-ray, electrocardiogram, liver and kidney function test, sex hormone six, thyroid function test, eugenics five test, electrocardiogram, etc., and only after all of them are qualified, we can prepare for pregnancy. The majority of them are benign, but some of them may become malignant. Therefore, patients with staphyloma must be reviewed regularly after the removal of the uterus, and the blood HCG should also be checked regularly after it has dropped to normal.