From 2012 to 2018, the Reproductive Medicine Center of Guangzhou City Women and Children's Medical Center was mainly engaged inclinical operations of assisted reproductive technologies such as artificial insemination, in vitro fertilization and embryo transfer. During this period, it has completed the diagnosis and treatment of thousands of cycles of in vitro fertilizationandembryo transfer cycles. It has rich experience in ovulation promotion, is good at formulating ovulation promotion plans and drug selection for different groups of people, and has meticulous and skillful surgical skills, helping many infertile patients successfully realize their dreams. Especially good at comprehensive management of gynecological endocrine diseases such as infertility and polycystic ovary syndrome, ovulation promotion and assisted fertility treatment