I have had my period 13 days early. It used to be very regular. I've had it since my senior year of high school.

Patient's question:

No

Doctor's answer:

Hello, in general, a delay or advancement of 7 days in menstruation is considered normal. I suggest you don't overworry and maintain a positive mindset. Moreover, menstruation is related to many factors, such as mental state, emotions, external environment, changes in weather, cold and heat stimuli, and improper diet, all of which can cause irregular menstruation. It is recommended that you pay attention to your diet and avoid eating raw, cold, spicy, and stimulating foods. Also, pay attention to keeping warm and avoid catching a cold.