In vitro refers to in vitro fertilization. Both embryo 10C2 and embryo 8C2 can be used as in vitro fertilization embryos, and embryo 10C2 is better. Embryo 10C2 and embryo 8C2 represent 3-day embryos. Embryo 10C2 indicates that there are 10 2-grade embryos in the embryo, while embryo 8C2 represents 8 2-grade embryos. The development speed of embryo 10 is faster, but the development potential of embryo 10C2 and embryo 8C2 is similar, which belongs to embryo 8C2 and also belongs to the embryo with a high transplantation success rate.

Under normal circumstances, the embryo should have 8 cells after 3 days of embryo development, but in the actual culture process, the speed of embryo development varies. The number of embryo cells can reflect the growth speed of the cells. 7-10 cells are normal, and the slower the cell development speed, the smaller the potential for embryo development. The quality of the embryo is judged according to the uniformity of cell division during cleavage and the size of cell fragments. If the cell volume is relatively uniform and the rate of cell fragments is small, it is an ideal embryo. If the rate of fragments is higher, the quality of the embryo will decrease.

Before and after in vitro fertilization, women should rest adequately in bed and avoid exercise, which is helpful to improve the success rate of in vitro fertilization. Usually, after one week, women can go to the hospital to learn whether the in vitro fertilization is successful, and blood tests should be done to determine whether the human chorionic gonadotropin level will rise. After in vitro fertilization, women should maintain a cheerful mood, avoid excessive tension and anxiety, to prevent the induction of uterine contraction and abortion, and other adverse pregnancy outcomes.