Breast PR 30% is considered positive. Breast cancer PR, or progesterone receptor, is generally greater than or equal to 1% indicates a positive progesterone receptor. Progesterone receptor is detected by immunohistochemistry for breast cancer patients, mainly by staining the patient’s tumor cells, if the nucleus of the tumor cells is stained greater than or equal to 1%, it means that the progesterone receptor is positive. Positive progesterone receptor in breast cancer indicates that the tumor cells in the patient’s body are regulated by progesterone-related substances. Patients can choose endocrine therapy under the guidance of doctors and it has certain effect, the specific treatment plan should be decided by doctors after comprehensive analysis according to the progress of the disease and the patient’s own situation. In general, the higher the PR value of breast cancer, the better the effect of endocrine treatment. It is recommended that patients go to regular hospitals to receive treatment.