Breast cancer with pain does not belong to advanced stage, the criterion of advanced breast cancer is that the tumor has distant metastasis, such as lung metastasis or bone metastasis, etc., and it is not based on whether there is pain in the tumor to determine whether the patient’s condition belongs to advanced stage. If the patient has pain in breast, it may be because the tumor is enlarged obviously or the tumor causes lesions around the breast, which causes pain, or the tumor invades the intercostal nerves of the patient, which causes the patient to have pain. It is also possible that the tumor has metastasis, such as bone metastasis that causes the patient’s waist pain or back pain, etc. It is necessary to go to the hospital for further examination, focusing on determining the size of the breast lump and axillary lymph nodes or whether there are metastases in distant places.