Low menstrual volume also in advance should first exclude the possibility of ovulatory bleeding, ovulatory bleeding is usually about fourteen days before the next menstrual flow, can spontaneously stop, mainly due to the endometrial loss of hormonal support a small amount of detached bleeding. The main reasons for low menstrual volume and early menstruation are: 1. Ovarian decline: When some women are middle-aged, the volume of menstruation will slowly decrease, which is normally a normal phenomenon. 2. Excessive weight loss: Since women’s menstruation is closely related to their weight and body fat content, if they lose weight excessively for a long time, it will seriously affect their menstruation. 3. Abortion. Surgery can cause damage to the body and thus affect menstruation. In addition, endocrine disorders and emotional factors may lead to the occurrence of low and early menstruation.