IVF is an important part of assisted reproductive technology, which is the common name for in vitro fertilization-embryo transfer technique for infertile patients. The entire operation process is as follows: 1. Pre-examination: both men and women usually need to undergo comprehensive examination 1-2 months in advance, such as semen testing for the male partner, gynecological examination, diagnostic scraping, laparoscopy, anti-sperm antibody, liver function and hepatitis B and half, routine blood analysis, clotting time and basic endocrine hormone determination, etc. The specific examination items vary from person to person; 2. 2. Ovulation promotion and follicle monitoring: the medication is usually started at mid-luteal phase, i.e. on the 21st day of menstruation, to keep the gonadotropins in the body at a low level, and the menstruation will start around 8 days after the medication. After 3 days of culture, the fertilized eggs will be developed into embryos and placed into the uterine cavity for transfer. For third generation IVF, the embryos need to be frozen and then transferred after testing and screening for blastocysts that do not carry disease correlations. Currently, IVF is a more mature technology and is widely used clinically, with a success rate of 50-60%, so if patients have a need for this, they can be assured of IVF treatment.