The recurrence rate of breast cancer without endocrine drugs may be relatively high, but due to the large individual differences of patients, the exact value cannot be given. Breast cancer is generally related to estrogen, usually through taking endocrine drugs to reduce the secretion of estrogen, and endocrine therapy is usually an important way of treating breast cancer, if you do not take endocrine drugs in time, the recurrence rate of breast cancer will be relatively high. It is recommended that patients should take endocrine drugs as instructed by doctors after suffering from breast cancer, which can reduce the recurrence rate to a certain extent, help improve the quality of life and prolong the survival period. It is recommended that patients should take medication under the guidance of doctors and avoid blindly using medication, which may cause other adverse reactions.