There is no need to convert a quarterly period into a menstrual period. The vast majority of women have a menstrual cycle of 28-30 days, but some people only have a period once every 3 months. The main reason why menstruation occurs is because the ovaries secrete estrogen and progesterone periodically. The periodic decline of estrogen and progesterone causes the endometrium to lose the support of estrogen and progesterone and the symptoms of menstruation will occur. If the ovaries secrete estrogen and progesterone periodically for a long period of time, it may cause menstruation only once in 3 months. Therefore, as long as menstruation is regular and does not affect ovulation, does not affect sexual life, and the color, volume and duration of menstruation are normal, there is no need to adjust it. If you have to adjust your menstruation to a period, you can use medication to adjust it, and it may return to the original state after you stop the medication.