IVF may place 2 to 3 at a time and needs to be judged based on a combination of factors such as the woman’s age and the number of transfers. When undergoing IVF, 2 embryos may be placed in the uterine cavity for women under 35 years of age. If a woman is over 35 years of age or undergoes more than 2 transfers, 3 embryos may be placed in the uterine cavity under the guidance of a doctor specializing in fertility centers. Under normal circumstances, it is generally recommended that women try to have a single embryo transfer and try not to have 2 or more embryos transferred, which may improve the success rate of the transfer. It is necessary for a woman to undergo embryo transfer under the guidance of a medical professional, which is conducive to a woman’s ability to get pregnant as soon as possible.