The increased amount of leukorrhea is most commonly seen in the following three clinical situations. First, physiological leukorrhea increases. Patients experience physiological leukorrhea increases during ovulation, before menstruation and after pregnancy due to changes in hormone levels and the secretion of secretion glands in the reproductive tract. The physiological leucorrhea is limited to the increase in the amount of leucorrhea, the color and smell of the leucorrhea is normal, and the patient has no local redness, congestion, or itching. Secondly, gynecological inflammatory diseases, mainly including endometritis, cervicitis and vaginal inflammation. Third, other gynecological lesions are mainly considered, such as gynecological neoplastic lesions, cervical cancer, endometrial cancer, cervical polyps, submucosal fibroids, etc. Gynecological internal examination, hysteroscopy and gynecological ultrasound are needed to further confirm the diagnosis.