Haiyun Guan

Polycystic ovary syndrome (PCOS) is a common endocrine disorder with a complex pathogenesis that includes disordered follicle development, hypothalamic-pituitary-ovarian (HPO) axis dysfunction, hyperandrogenemia, and insulin resistance. The…

BACKGROUND: Dydrogesterone has shown significant efficacy in treatment of irregular menstrual cycle due to abnormal uterine bleeding - ovulation dysfunction (AUB-O), but there were few relevant studies. This observational study was designed…