This infection is most commonly caused by Candida albicans, which can be found in the vaginas of asymptomatic patients and is a commensal of the mouth, rectum, and vagina. Risk factors Warmer climates Obese patients Immunosuppression Diabetes mellitus Pregnancy Recent broad-spectrum antibiotic use Oral-genital sex Oral contraceptives or hormone therapy Oral sex Douching Cigarette smoking