The vast majority of women will have a clear discharge during ovulation, which is the white discharge that is characteristic of ovulation. Due to individual differences, the amount of discharge varies from person to person, with some having slightly more and others slightly less. Some people may have a particularly small amount, and when it is particularly small, it may be overlooked and mistaken for a lack of ovulation because there is no clear, well-drawn leukorrhea during ovulation. This kind of women can monitor the growth and development of follicles through ultrasound when necessary, for example, on the twelfth day of menstruation through ultrasound to understand the development of follicles, if the follicles are found to be enlarged in the process of monitoring the ovulation and will rupture and discharge the eggs after reaching the dominant position, which indicates that the ovulation function is normal.