Vaginal swab kits are sterile collection tools for diagnosing infections like bacterial vaginosis (BV), candidiasis (yeast), trichomoniasis, chlamydia, gonorrhea, and Group B strep via self- or clinician sampling. Kits typically include 1-3 swabs (vulvovaginal/large white tip for NAAT/STIs, high-vaginal charcoal Amies for culture, endocervical for GC/CT), transport medium tubes, and instructions: wash hands, insert swab 5cm into vagina, rotate 10-15s against walls, snap shaft at score line, secure in liquid. Self-collection matches clinician sensitivity; results guide antimicrobials.