The success rate is affected by a variety of factors, such as the age of the woman, if she is old, the quality of the eggs is not good and the number of eggs is low which can easily affect the success rate of raising the embryo. Men often smoke and drink, which affects the quantity and quality of sperm and causes a decrease in fertilization rate. Sperm and eggs combine to form embryos, but poor quality embryos can also cause a decrease in success rate. In addition, there is also the skill of the operator and the environment of the laboratory, all of which can affect the success rate of raising the sac. If you are planning to do IVF, it is better to go to a regular large hospital where the environment is better and the skills of the staff are relatively high, which can increase the success rate of blastocyst raising. During egg and sperm retrieval, both men and women need to stop smoking and drinking, and it is recommended to exercise properly and eat more high-protein foods, etc., which can enhance their physical fitness and can ensure the quality of sperm and eggs.