Research Work Long-term engagement in research related to gynecology and obstetrics, reproductive endocrinology, and assisted reproductive technology. Conducted in-depth analysis of ovulation induction protocols during assisted reproduction in polycystic ovary syndrome (PCOS), elucidating the relationship between glucose metabolism abnormalities, hyperandrogenism, and pregnancy outcomes in PCOS patients. Explored improvements in ovulation induction protocols for women with diminished ovarian reserve, proposing a modified letrozole mild stimulation protocol. Performed systematic case-control studies on novel methods for multifetal pregnancy reduction, proposing modified approaches. Systematically investigated the impact of endometrial inflammation on assisted reproductive outcomes, emphasizing that structural abnormalities such as micro-polyps detected under hysteroscopy can affect outcomes and require clinical attention and timely treatment. Research findings are directly applicable to clinical translation. Awards First Prize of University Science and Technology Progress Award, 2015; Second Prize of Scientific and Technological Achievement Award, Second Maternal and Child Health Science and Technology Award, 2017; First Prize of the 17th Young Faculty Teaching Skills Competition (Medical Category), Peking University, 2017; Peking University Teaching Excellence Award, 2018; Second Prize of Beijing Young Faculty Teaching Skills Competition, 2019; Peking University Young Post Expert, 2019.