Menstruation is particularly sleepy with several factors: first, may be the hormonal effect on the body caused by the problem, women during the onset of menstruation in the body hormonal changes faster, the body will also appear corresponding changes, will lead to menstrual sleepiness, with the body’s estrogen secretion reduction, there may be other physical symptoms. Second, it may be a problem caused by rapid loss of nutrition, many women will have bleeding problems during their periods, part of the nutrition may be lost, women will feel more fatigue, thus appearing sleepy, dizzy and other kinds of physical performance. Third, it may be caused by cold or heavy dampness in the uterus, excessive dampness in women will make the symptoms of menstruation more obvious, and may also cause sleepiness, fatigue and other physical performance symptoms.