Why is libido high before menstruation

Patient's question:

Patient Gender: Female
Age:
Detailed medical condition and consultation purpose: Since two years ago, sexual desire has been strong before the menstrual period each month. Is this a medical condition?

Doctor's answer:

Hello, during the days before and after menstruation, estrogen and progesterone levels drop to their lowest point in the cycle, while testosterone levels reach their highest point, leading to increased libido. A delay or advancement of 3-7 days in menstruation is a normal phenomenon. As long as it is regular, there is no need to worry. If it exceeds 7 days and pregnancy is ruled out, it may be caused by menstrual irregularities. During the days before and after menstruation, estrogen and progesterone levels drop to their lowest point in the cycle, while testosterone levels reach their highest point, leading to increased libido. A delay or advancement of 3-7 days in menstruation is a normal phenomenon. As long as it is regular, there is no need to worry. If it exceeds 7 days and pregnancy is ruled out, it may be caused by menstrual irregularities.