Why is menstruation 10 days early?

Patient's question:

Menstruated on the 24th, and it arrived today this month, a full 10 days earlier. Why could this be? I had sexual intercourse in the middle, and took one dose of birth control pill. Onset time and cause: Treatment status: Desired help: Thank you, please help me analyze this.

Doctor's answer:

The main factors affecting early menstruation include endocrine disorders, uterine diseases, gynecological inflammation, psychological factors, emotional fluctuations, environmental changes, medication effects, fatigue, excessive stress, and nutritional status, etc. For example, taking birth control pills, imbalances in certain trace elements in the body, or unstable emotions can all cause early menstruation. Long-term travel or being away from home can also lead to menstrual irregularities, as menstruation is influenced by time and environment. Unstable living conditions, just like without sexual activity, can also result in menstrual disorders. Once early menstruation is detected, it should not be taken lightly. It is recommended to undergo an ultrasound and a six-item sex hormone test at the hospital to identify the underlying cause before symptomatic treatment.

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