The absence of leucorrhea does not necessarily mean that ovulation is not occurring. Ovulation is related to factors such as environment, emotions, physical condition, sexual life and medications. However, if you have not had a stretched leucorrhea throughout your menstrual cycle, you may have ovulation abnormalities. Under the influence of ovarian sex hormones the cervical gland cells secrete mucus, but the color, nature and amount of mucus will show significant cyclical changes. The secretions of women during ovulation will be mucus-like, thin, transparent and easily stretched, but the physical condition of each person is different, even if the patient does not have stretched leucorrhea, she may have ovulated, and it is not accurate to judge whether there is ovulation by whether the leucorrhea is stretched or not. We suggest that patients should go to the gynecology department to check their cervical mucus, or to have their blood drawn for sex hormone six to determine whether they are ovulating or not, but of course, monitoring the growth and development of follicles and determining ovulation under vaginal ultrasound has the highest accuracy rate.