As a result of its anatomical proximity to the anal, vaginal, and urethral orifices, the vulva is easily subject to contamination by resident microorganisms from these sites. These exogenous sources have different microbiota from one another and the impact of these populations on the microflora of the vulva is influenced not only by their diverse nature, but also by a number of other factors including personal hygiene practices, the occlusive properties of clothing, and individual anatomy. Continuous seeding of diverse microorganisms contributes heavily to the dynamic diversity of vulva microbial populations.
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The term vaginitis is one that is applied to any inflammation or infection of the vagina, and there are many different conditions that are categorized together under this ‘broad’ heading, including bacterial vaginosis, trichomoniasis and non-infectious vaginitis.