It is normal for menstrual flow to decrease after taking Eusyn. Eusemide is a combined estrogen and progestin preparation with a very low estrogen content and a relatively high progestin content. Its main function is to regulate women’s menstrual cycle and inhibit the proliferation of endometrium. In clinical practice, it can be used for the treatment of excessive endometrial proliferation, prevention of recurrence of endometrial polyps after surgery, and regulation of women’s menstrual cycle. If the patient is taking Eusyn to regulate her menstrual cycle, she can take it with a dose of estrogen to increase the proliferation of the endometrium, which can increase her menstrual flow. If you are using Eusebio to prevent recurrence of endometrial polyps or to treat excessive menstrual flow due to adenomyosis, the reduction in menstrual flow is a therapeutic effect and does not need to be treated separately.