The presence of brown discharge 5 days after menstruation is considered the presence of ovulatory bleeding. Ovulatory bleeding is defined as a small amount of vaginal bleeding before or after ovulation, which can be dark red, bright red, or in some patients, bloody leukorrhea. The cause of ovulatory bleeding is the fluctuation of estrogen before and after ovulation during the menstrual cycle, which can lead to a small amount of vaginal bleeding due to endometrial exfoliation. The bleeding is usually minimal and short, stopping in 3-5 days, so it is a physiological phenomenon that does not require treatment and will not affect pregnancy. If the bleeding during ovulation is prolonged and heavy and affects the patient’s work and life, medication intervention is needed, mainly estrogenic drugs and short-acting contraceptives.