High estradiol after ovulation induction may be due to normal physiological reasons of ovulation induction therapy, or it may be due to pathological reasons such as overstimulation of the ovaries, which need to be analyzed specifically. 1. Physiological reasons: under normal circumstances, estradiol will rise during follicular growth and development, and after ovulation, when many follicles grow and develop, the estradiol value will be even higher, which belongs to the normal physiological changes after ovulation. 2. Pathological factors: After ovulation induction, because many follicles develop at the same time, if the function of the ovary is seriously affected, excessive estrogen will be produced, resulting in ovarian hyperstimulation syndrome and elevated estradiol. High estradiol after ovulation promotion may also be caused by other reasons.