If the breast pain is caused by breast swelling, especially before menstruation, most of the patients are due to the increase of hormone secretion during this period, which causes local stimulation to the breast, and the clinical manifestation of breast swelling will occur. However, it is necessary to further exclude whether the condition is caused by organic diseases of the breast, such as breast fibroma, breast hyperplasia, breast nodules, breast space-occupying lesions and so on. Therefore, it is recommended that the patient undergoes ultrasound examination of the breast, mammography scanning of the breast, and puncture and biopsy if necessary, in order to clarify the exact cause of the disease, and according to the results of the examination, further treatment will be provided.