Patient's question:
My friend's girlfriend has been having her period every 2 months since the beginning until now (over 3 years). Is that normal?Doctor's answer:
A menstrual cycle that comes every two months is also normal. This varies from person to person. As long as the cycle remains consistent and regular, there is nothing to worry about. A normal menstrual cycle is 28 days. It is considered normal if it is extended or shortened by one week, as long as there are no abnormal symptoms during the period. However, if it goes beyond this range, it is definitely not normal. Clinically, we have encountered menstrual cycles of 40 days or 50 days. If this pattern persists, it may be normal and requires two hormone level tests + ultrasound for confirmation.