Success rate is the number one concern of infertile patients undergoing IVF, and it is also the number one concern of all medical and embryo room personnel, and we are comrades in arms on this front of improving success rates. The success rate we generally refer to is the chance of success per transfer cycle, that is to say, 100 people were transferred, 45 of them were pregnant, that is to say, the average accumulation of two transfer cycles can obtain a pregnancy, note that here is the average, there are many people are successful once, there are also people transferred three or four times, and even a few people transferred five, six, seven or eight times also. The first important factor is still the age of the woman, because the age of the woman is directly related to the quality of the eggs, if you are in your twenties, even if the ovarian function is not too good, I will confidently tell you that the chances of success are very high. Basically, you can take baby home. If you are already in your forties, the success rate per transplant cycle is less than 20%, and for women over 43 years old, it can only be a trial. Often people ask what medications they can take to improve ovarian function. Some medications may improve ovarian function slightly, but there is no possibility of “regrowth”. For example, in patients with endometriosis adenomyosis, the success rate is a few points lower than that of the same age group; for example, damage to the endometrium from a previous abortion may also affect embryo fertilization. Fluid in the fallopian tube can also affect the success rate and should be treated before the transfer. 3, again, the male sperm, a small sperm for the embryo development potential is gradually being discovered, the male party before doing IVF to stop smoking and alcohol, pay attention to rest is still very necessary. 4, the last one, personally I think is also more important, is to relax, although the process of IVF is stressful, but should try to regulate, psychological factors and pregnancy success is also closely related. See another article “Infertility, let’s deal with it together” for more details.