Ovulatory bleeding usually lasts 2-3 days and does not exceed 7 days. For women of childbearing age with regular menstruation and a menstrual cycle of 28 days, the day of menstruation is the first day of the menstrual cycle, and the 14th day is the day of ovulation. The three days before and after ovulation have a chance of conception, so this period is called ovulation. The endometrium of some women is sensitive to the drop in hormone levels, resulting in partial exfoliation and a little vaginal bleeding, which is a normal physiological phenomenon. Since estrogen and progesterone levels rise soon after ovulation, endometrial peeling is not too obvious, so the vaginal bleeding is not too much and does not last long, mostly ending in 2-3 days and not more than 7 days. In addition, it is important to note that if the vaginal bleeding is heavy and prolonged, a woman needs to be seen by a doctor to rule out pathological causes.