多囊卵巢综合症（简称PCOS或PCO，或多囊性卵巢症候群或称多囊卵巢综合征）是一种影响全球近一成女性的内分泌失调。病征包括月经稀疏或停止、慢性无排卵、不孕、多毛、痤疮、发胖、黑棘皮症等。而患者的卵巢会满布微小的囊肿，严重情况下更会使子宫内壁增生，并增加患上子宫癌、糖尿病、抑郁症的风险。目前尚无法给出较为有效的治愈方法。

病因：

现代医院（西医）：病因尚不清楚，涉及的病理机制非常复杂。一般认为与下丘脑-垂体-卵巢轴功能失常、肾上腺功能紊乱、遗传、代谢等因素有关。

中医：本病主要是因肾虚、痰湿、气滞血瘀、肝经湿热等导致的肾-天癸-冲任-胞宫轴功能失调，致使月经停闭、不孕等。

Polycystic ovary syndrome (PCOS) is a set of symptoms due to elevated male hormone in women. Signs and symptoms of PCOS include irregular or no menstrual periods, heavy periods, excess body and facial hair, acne, pelvic pain, difficulty getting pregnant, and patches of thick, darker, velvety skin. Associated conditions include type 2 diabetes, obesity, obstructive sleep apnea, heart disease, mood disorders, and endometrial cancer.