When your period is ten days early, you first need to clarify whether it is menstrual or not, as it is possible that it is ovulatory bleeding and not a true menstrual period. In some women, a small amount of vaginal bleeding can result from a temporary drop in estrogen during ovulation, which is usually normal and does not require treatment. However, if the bleeding during ovulation is heavy, it is an abnormal condition and timely treatment is recommended to avoid anemia or to affect future conception. In addition, early menstruation for more than 10 days may also be an abnormal condition. It is mostly considered that external factors such as women’s recent mental stress and irregular work and rest have affected the central nervous system, which in turn affects the hormones secreted by the pituitary gland, resulting in early menstruation. If the external factors are removed and the next menstruation returns to normal, there is no need to worry too much. However, if the menstruation is not normal every month, sometimes early and sometimes postponed, it is abnormal uterine bleeding, which may be caused by diseases such as endometrial polyps and adenomyosis, and the patient is advised to undergo sex hormone examination as well as ultrasound examination, etc.