A routine white belt test is one of the most common gynecological tests. The results of a routine white belt test do not take a long time and are normally available within 0.5 to 1 hour. Women need routine leuko examinations for gynecological examinations, which can reflect women’s gynecological problems. The abnormal leucorrhea can also lead to a series of uncomfortable symptoms, such as itching of the vulva and increased vaginal secretions. The most common abnormalities are mycobacterial infections, trichomonas infections and bacterial vaginitis infections.