The presence of a white band does not mean that menstruation is imminent, and it is not a symptom that can be used to determine whether menstruation is imminent or not. In addition to an increase in discharge before menstruation, there can also be premenstrual signs such as breast tenderness and lower abdominal cramping. Most women experience leukorrhea during their menstrual cycle, usually in small amounts, which is a normal physiological phenomenon. There are two general considerations for increased leukorrhea. First, physiological leukorrhea increase, in the middle of menstruation, before menstruation and after pregnancy, due to the body’s estrogen and progesterone levels increase, there will be a physiological increase in leukorrhea, this situation is limited to leukorrhea increase, leukorrhea, color, smell most of the normal. Secondly, pathological leukorrhea increase caused by inflammatory diseases or other diseases, not only the amount of leukorrhea increases, its color and smell will also have obvious abnormalities. Before menstruation, most women will experience discomfort in the lower abdomen, and the symptoms are usually mild. In addition, some women may experience mood changes before menstruation, such as insomnia and emotional instability.