Insomnia in the days before menstruation is considered to be caused by premenstrual syndrome. There are many reasons for premenstrual syndrome, because the ratio of estrogen to progesterone in a woman’s body can be imbalanced before and during menstruation, or there can be problems with brain neurotransmitters, which can lead to insomnia. In addition, if a woman is often in an anxious or tense mood, it is also easy to suffer from insomnia before or during the menstrual period. It is important to relax and adjust your mind during menstruation, and you can drink brown sugar and ginger water to help relieve the symptoms. In addition, you can do sports appropriately, but not strenuous exercise, you can soak your feet in hot water or drink hot milk before going to bed at night to help promote sleep. If the insomnia is more serious, you can go to the hospital and take drugs to help you sleep under the guidance of a doctor.