Women with light menstruation may have the following conditions: First, it may be related to the recent menstruation, when the blood flow is not smooth, the color may be light and the volume of menstruation may be low. 2. It may also be related to the presence of anemia in women, such as anemia caused by uterine fibroids or endometrial adenomyosis. Third, it is related to the low level of hormones in the body. When the level of estrogen is low, the endometrial lining grows thin, which will lead to low menstrual volume and leucorrhea osmosis, which will also cause the color to become lighter. When women have low menstrual volume and light color, it is better to go to the hospital for gynecological ultrasound and sex hormone examination, and take appropriate medication according to different causes, the effect is better.