Women who cannot get their menstruation down and bleeding is not discharged smoothly are usually caused by Qi stagnation and blood clotting. If there is too little bleeding, it can generally be effectively improved by using motherwort granules to promote the shedding of the endometrium. At the same time, it is normal for menstruation to be affected by the external environment and to be early or recede within one week. However, if you have a regular menstrual cycle and are having sex, you should first test for the possibility of pregnancy. However, if there is no sexual intercourse, it is likely to be caused by abnormal changes in the thickness of the endometrium. It is usually necessary to check whether the endometrial thickness is normal through ultrasound and to check whether the hormone level in the body is normal, and to use medication to regulate it according to the test results.