The term “great aunt” usually stands in for menstruation. Before menstruation, women may have precursors such as breast swelling and pain, abdominal pain and increased discharge, which need to be analyzed specifically. 1. Breast swelling and pain: Before menstruation, a woman’s progesterone secretion is higher, which will stimulate the breast ducts, resulting in breast swelling and pain. 2. Soreness and pain in the abdomen: When menstruation is approaching, the pelvis is in a state of congestion, and there will be soreness and distension in the abdomen, which is also a precursor of the approaching menstruation. 3. Increased secretions: Before menstruation, the endometrium is at the level of secretion period and the reproductive tract is in the state of congestion, which tends to make secretions become more. Women need to avoid cold stimulation when menstruation comes, and if there is too much pain in the breasts or heavier symptoms of dysmenorrhea, they can go to the hospital and intervene under the guidance of the doctor.