Vaginitis is a term used to describe disorders that cause infection or inflammation of the vagina. Vulvovaginitis refers to inflammation of both the vagina and vulva, the outer area of labial and skin surrounding the vagina.
These conditions can result from an infection caused by organisms such as bacteria, yeast, or viruses, as well as by irritations from chemicals in creams, sprays, or even clothing that are in contact with this area. In some cases, vaginitis results from organisms that are passed between sexual partners.
Description of Vaginitis
The term "yeast infection" is what most women think of when they hear the word vaginitis. However, a yeast infection is only one kind of vaginal infection. Vaginitis can be caused by several different organisms, sometimes at the same time, as well as by hormonal changes, allergies, or irritations.
Vaginitis can also be caused by antibiotic use, diabetes, excessive alcohol, steroid use, a weakened immune system, abrasions of the vagina, or tight non-cotton underwear.
Source : healthscout.com