Leukorrhea cleanliness is categorized into four grades based on the amount of bacilli, cocci, leukocytes, and epithelial cells, of which grades I-II are considered normal cleanliness. Leukorrhea cleanliness is classified according to the number of cells, bacteria, and other organic components in the smear observed with high magnification, and the results are reported in degrees I-IV. Among them, in I degree: bacilli are numerous, no cocci, 0-5 leukocytes or pus cells per high magnification field of view, full field of view of epithelial cells; II degree: bacilli are moderately numerous, few cocci, 5-15 leukocytes or pus cells per high magnification field of view, one-half of the field of view of epithelial cells; III degree: few bacilli, many cocci, 15-30 leukocytes or pus cells per high magnification field of view, small number of fields of view of epithelial cells; IV degree: No bacilli, a large number of cocci, leukocytes or pus cells per high power field of view > 30, no epithelial cells. Leukorrhea normal cleanliness reference interval for I ~ II degree, which also no trichomonas, not see or occasional fungi, no pathogenic bacteria and special cells. Clinically, when the patient’s leukorrhea cleanliness is abnormal or there are other pathogenic components, the cause of the disease should be clarified under the guidance of the doctor, and active treatment.