For a simple white band test, there are generally two methods: a manual mirror test, which gives instant results, and a machine test, which takes about 30 minutes to produce results. However, there are some time differences between different hospitals. 1. Manual microscopy: the clinician carries out microscopy under the microscope, which can produce instant results, but this kind of examination is relatively rare at present. 2. Machine testing: Clinicians take a sample of the patient’s leukorrhea and place it in a machine, which usually takes about 30 minutes to produce results. Patients need to pay attention to avoid vaginal douching before receiving leukorrhea test, and no coitus 2-3 days before the test to avoid affecting the test results. It is recommended that women should pay attention to their leukorrhea, once abnormal leukorrhea occurs, they need to consult a doctor in time and deal with it positively, so as to avoid affecting their health.