A High Vaginal Swab (HVS) is a medical procedure performed in obstetrics and gynecology to test vaginal discharge for the presence of vaginal thrush, bacterial vaginosis, and trichomonas vaginalis. It is a simple test done in a doctors office or clinic, and it can help detect infections that can cause serious health problems, such as pelvic inflammatory disease, infertility, and cancer. The HVS test detects STDs such as HPV, chlamydia, trichomoniasis, and gonorrhea. It can also help detect the cause of abnormal vaginal bleeding in women who have never been diagnosed with any disease or infection. The technique involves obtaining a sample of discharge from the vagina, which is then sent for culture and sensitivity. The presence of laboratory facilities is ideal, but in places where resources are limited, a HVS can be performed and evaluated at the bedside. Using HVS, candida and trichomonas may be diagnosed with a wet mount microscopy. The HVS is the mainstay of investigation of vaginal discharge in general practice.