Abstract: Based on SUN Simiao's theory of “Bao Zhong Fenghan”, this paper condenses the point of view of “Tuichen Zhixin” as the first point of view in treating menstrual diseases. It analyzed and summarized the theoretical connotation of “Bao Zhong Fenghan” suggested that the first condition of “Bao Zhong Fenghan” is long-standing deficiency of the vegetative body, and the main clinical idea of treatment should be to Tuichen Zhixin(weeding through the old to bring forth the new). The clinical feature of “Bao Zhong Fenghan” in menstrual diseases is “prolonged”.Most of the patients have been ill for years, resulting in the accumulation of obstructions in the uterus and the combination of other diseases. Treating this type of menstrual disease should focus on the “Tuichen Zhixin”, combined with the flexible use of multiple methods.Purgative therapy focuses on opening the door to chase away bandits, driving the evil out. The mineral herbs reach the uterus directly to slowly dissipate the Fenghan. The medicinal properties of insect drugs are good at moving and removing, so they can be used to attack eliminate mass. The pungent herbs Sanfeng Xingxue, which focuses on Tongxing Baogong Qixue. Hanwen Bingyong focuses on Tiaohe Yinyang, and the renewal of Qixue. The purpose of this paper is to systematically excavate SUN Simiao's theory of “Bao Zhong Fenghan”, to further enrich the ideas of Chinese medicine diagnosis and treatment of menstrual diseases, to provide a basis for the modern medical research of SUN Simiao's academic thought, especially provide reference for the identification and treatment of complex female diseases with a long course, such as “Gonghan”, from the perspective of Waigan Fenghan.

Key words: Bao Zhong Fenghan, Tuichen Zhixin, menstrual disease, SUN Simiao, treatment characteristics