“Auntie” generally refers to a woman’s menstrual period. After menstruation, the breasts are still swollen and painful, which may be caused by the psychological effect of women, hormone level changes or breast diseases. 1. Psychological effects: Breast swelling and pain after menstruation may be due to the patient’s psychological stress and physical discomfort, and the symptoms of breast swelling and pain may disappear after the patient shifts his/her attention. 2. Hormone level changes: As the hormone level changes during menstruation, the level of estrogen and progesterone decreases, which may stimulate the breasts and cause breast swelling and pain. 3. Breast diseases: Patients who still have breast swelling and pain after menstruation may be caused by breast diseases, such as cystic hyperplasia of the breasts, etc. Patients may have breast swelling and pain throughout the menstrual cycle. If women still feel breast swelling and pain after menstruation, and the symptoms are not relieved after lifestyle modification, they should consult a doctor in time, complete relevant examinations, clarify the cause of the disease, and target treatment under the guidance of the doctor.