Breast cancer patients who have ovarian cysts and are not experiencing uncomfortable symptoms may not need to take special treatment measures. Alternatively, medication and surgery may be used. Ovarian cysts are cyst-like structures that form in or on the surface of the ovary and may contain liquid or solid material. Its causes are related to the environment, improper diet, hormones, infections, genetics and other factors. If a patient with breast cancer develops ovarian cysts without obvious uncomfortable symptoms, usually there is no need to take special treatment, and regular review and observation can be done according to the doctor’s instructions. However, if there is pain in one side of the lower abdomen, and the pain is relatively serious, medication can be taken, under the guidance of the doctor, oral ethinyl estradiol cyproterone tablets, drospirenone ethinyl estradiol tablets and so on. In the case of meeting the surgical index, surgical treatment is needed, such as ovarian cyst removal, ovariectomy of the affected side, total hysterectomy, etc. If breast cancer patients are diagnosed with ovarian cysts, they need to actively cooperate with doctors to take relevant treatment measures, so as not to delay the condition. Please strictly follow the doctor’s prescription for medication, and do not use medication on your own.