ObjectiveTo observe the efficacy of Xiaoyan Zhixue Capsule (XYZXC) in treating uterus abnormal menorrhagia caused by intrauterine device (IUD) and to study its mechanism.

• 目的观察中药消炎止血胶囊(简称中药)治疗宫内节育器(IUD)所致子宫异常出血的疗效,并探讨其作用机制。