Efficacy and Safety of Huanjingjian Decoction in Women With Premature Ovarian Insufficiency

Inclusion Criteria: * Age between 18 and 39 years * Meet the diagnostic criteria for Premature Ovarian Insufficiency (POI) according to the 2024 ESHRE Guideline on Premature Ovarian Insufficiency Exclusion Criteria: * Menstrual disorders attributable to congenital gonadal dysgenesis or acquired structural pathologies; * Menstrual irregularities secondary to endocrine disorders, including polycystic ovary syndrome (PCOS), hyperprolactinemia, dysfunctional uterine bleeding (DUB), gonadal hormone deficiency, hyperthyroidism, and other related endocrine conditions; * Oligomenorrhea or amenorrhea induced by surgical or medical interventions, such as chemotherapy, pelvic radiotherapy, ovarian cystectomy, ovarian drilling, ovarian wedge resection, salpingectomy, tubal ligation, pelvic abscess surgery, or uterine artery embolization; * History of abnormal vaginal bleeding accompanied by clinically significant findings on endometrial biopsy, or unexplained irregular vaginal bleeding within the preceding 12 months; * Suspected cervical malignancy or precancerous cervical lesions, suspected malignant breast tumors, or a known or suspected history of hormone-dependent tumors or malignancies; * Previous or current history of deep vein thrombosis (DVT), pulmonary embolism, thrombotic disorders, or cerebrovascular events (stroke); * Presence of uncontrolled and/or undiagnosed systemic diseases that could confound study results or compromise patient safety, including severe hepatic, renal…