The main cause of brown discharge during ovulation is ovulatory bleeding. During ovulation, along with the maturation and discharge of follicles, the hormone level in the body will undergo a series of changes, including a transient fluctuating drop in estrogen, which will be accompanied by a small amount of endometrial exfoliation and bleeding, so there will be a brown discharge with a relatively small amount of bleeding, bright red or dark red and clean in 2-3 days. If the bleeding during ovulation has little effect on the usual life, it can be observed for the time being; if the patient thinks the symptoms are heavy and affect the usual life, it is recommended to take short-acting oral contraceptive pills. The pill is taken every night before going to bed, starting from the fifth day of menstruation, for 21 days, and normal menstruation will occur after 3-5 days of stopping the pill; if the treatment needs to be repeated, repeat the above treatment on the fifth day of menstruation.