Using Micro Electro Mechanical Systems to Detect the Air of Vaginal Discharge

Inclusion Criteria: * Female, Age ≥20 to ≤50. * Have had sexual experience. * Fully understand the subject's informed consent process and be willing to undergo all study-related assessments and procedures. Exclusion Criteria: Women who meet any of the following criteria by participant report will be excluded from the study: * During menstruation. * Have performed vaginal washing within three days. * Have been treated for vaginal infections within one week.