This paper summarized MI Ziliang's experience in the treatment of benign ovarian cysts by stages of “having been sick”， “having recovered from diseases” and “having potentials before diseases” under the theory of “treat disease before it arises”. If people are already sick， it is important to give precise treatment of the stubborn illness. For benign ovarian cysts， spleen deficiency failing to transport and liver

qi

in superabundance are the root， while binding of phlegm and stasis is the branch. In clinical practice， it is critical to distinguish the primary and the secondary during pattern differentiation and treatment， and to prevent progression of the disease. It is suggested to differentiate

qi

and blood initially， and then other patterns. Modified

Guizhi Fuling Pills

（桂枝茯苓丸加减） can be used to move

qi

and invigorate blood， and simultaneously， it is advised to treat the blood diseases and prevent water diseases， and use

Si Miao Powder

（四妙散） flexibly. During discovering stage，

Xiao Yao Powder

（逍遥散） is suggested， and it is important to recuperate and take a good rest， thereby preventing the recurrence. Before the disease arises， it is suggested to take cautions and keep in good health， regulate emotions， take reasonable diet， pay attention to the menstrual period and postpartum care， thereby preventing the occurrence of the disease.