The term “great aunt” refers to menstruation, and women may gain weight prior to menstruation. Before the onset of menstruation, due to changes in hormone levels in the body, may cause the body to appear water retention, serious cases will appear obvious tissue edema, at the same time, some women in the pre-menstrual period there is a hyperphagia, the amount of food eaten increased, all these factors may cause a woman’s weight to become heavier, the general change in body weight may be in the range of 1 ~ 2 kg. For premenstrual women, it is also necessary to pay attention to keep warm, keep the mood happy, pay attention to rest, do not stay up late, if premenstrual abdominal pain, breast swelling and pain and other discomfort, it is recommended that patients go to the regular hospital, clear cause of the disease and then active treatment.