There are several reasons why women’s menstruation comes a little and then goes away: 1. Female endocrine dysfunction, because the formation of normal menstruation is closely related to a variety of hormones in the body. When one or more of these hormones have problems, it may lead to problems in the regulation of menstruation, and menstruation may not come at all. 2, it may be due to the weakness of the body, some women usually do not pay attention to the rational nature of the diet, picky eating or deliberate dieting in order to lose weight, and partial diet. These situations can lead to a lack of nutrition or malnutrition in the body. The reason is that the formation of normal menstruation requires the participation of a variety of nutrients, if women lack of nutrients can also lead to a lack of menstrual blood, there will be a little bit of menstruation without the situation. 3, women’s menstruation came a little bit and lost, but also may be because women are in the ovulation period, not in the menstrual period, this situation is not rare in the clinic, but does not exclude the possibility of this.