What Causes Early Menstruation?
Disease description:
My menstrual cycles have always been relatively regular, but this month my period arrived earlier than expected. What are the possible causes of an early period?
Doctor's answer (1)
Dr. Zhang Jianhai
Menstruation occurring earlier than expected may be a normal physiological phenomenon, as numerous factors in daily life—such as lifestyle and emotional fluctuations—can influence the menstrual cycle. It may also result from endocrine disorders, abnormal endometrial thickness, or endometriosis. Additionally, uterine tumors commonly cause early menstruation.
