A normal pregnancy can be distinguished from a gravid pregnancy by ultrasound images. Both normal pregnancy and gravida can show menopause, vaginal bleeding, an enlarged uterus, positive urine test and elevated blood HCG, but in normal pregnancy, the ultrasound usually shows a gestational sac, yolk sac and germ in the uterus, and the enlarged uterus corresponds to the month of menopause, while in gravida, most of the uterus is larger than the month of menopause, the HCG is abnormally elevated, and the ultrasound shows an enlarged uterus, but no gestational sac tissue is visible. The uterine cavity shows a falling snow or honeycomb shape, filled with inhomogeneous dense, or accompanied by ovarian cysts. In addition, if a normal pregnancy is terminated, you can usually consider getting pregnant again in the next month or every three months or so, while women with gravida should be fully prepared before clearance, such as checking blood type and coagulation function, etc. Gravida is more prone to hemorrhage or uterine perforation during surgery, and patients should be followed up for about one to two years after surgery, and patients should be closely monitored for changes in blood HCG after surgery, and it is best to use contraception for about a year after surgery. For those who have a slow decline in HCG, the duration of contraception should be extended accordingly. In conclusion, there are similarities between normal pregnancy and gravida, but the differences are mainly in the ultrasound image response, HCG changes and uterine changes, etc. Gravida is an abnormal proliferation of trophoblast cells in the placental villi, complete gravida may have metastasis, and if not treated in time, it is easy to develop secondary anemia and infection, etc.