Ovulatory bleeding may cause a delay in menstruation, and a delay of 7 to 10 days is usually normal. The reason is that during ovulation, a small amount of endometrium is exfoliated, which may cause the endometrium to be thinner and the time of menstruation may be delayed. As far as possible, observe first, as long as it comes within 10 days will not affect health, but if more than 10 days is abnormal at this time, it is recommended to go to the hospital registered gynecology department for ultrasound examination to determine the condition of the endometrium. If necessary, you can take oral menstruation medication to promote menstruation to restore normal menstruation. Occasional bleeding during ovulation will not cause any effect, but prolonged bleeding during ovulation will prevent intercourse and may affect conception. Whenever possible, a hormone test should be performed and, depending on the situation, the cycle should be regulated to avoid frequent ovulatory bleeding.