Why Does Menstruation Occur Earlier Than Expected?
Disease description:
My period isn’t due for another week, yet it started today—earlier than expected. I’m unsure whether this is normal. This time, I didn’t experience any of the usual premenstrual symptoms. Why would my period arrive early?
Doctor's answer (2)
Dr. He Liangjun
Hello,
If your menstrual period begins up to one week earlier than expected, this is generally considered normal. However, if it starts more than one week earlier than usual, other underlying factors should be considered. For example, certain medications—particularly hormonal drugs taken recently—may cause early menstruation. Additionally, malnutrition or endocrine dysfunction can also lead to a shortened menstrual cycle.
We hope this information is helpful to you. Wishing you a happy and healthy life!
