The term “great aunt” generally refers to a woman’s menstrual period. Weight gain during menstruation may be due to hormonal changes in the body during menstruation and may return to normal after menstruation. This may be due to hormonal changes in the body during menstruation. However, the exact change in weight varies from person to person. Before the onset of menstruation, estrogen and progesterone levels can still remain elevated. Under the effect of hormones, the body’s retention of sodium and water increases, which may lead to weight gain. After the onset of menstruation, estrogen and progesterone levels will decline, and under the action of hormones, the body’s retention of sodium ions and water gradually decreases, and weight will return to normal after the menstrual period. It should be noted that if patients experience abnormal weight gain during menstruation, it is recommended that they go to the hospital to find out the cause and have it regulated by a doctor to avoid delaying their condition.