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Those topics are among the most viewed blog posts on WebMD for 2008.
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Candida albicans causes 80% to 90% of vaginal yeast infections. This fungus thrives in the digestive tract, mucous membranes (such as in the vagina, mouth, and nose), and skin. Normally, bacteria in your body keep yeast in check. But when yeast grows too quickly, a vaginal yeast infection can occur. This can happen when you're weakened by illness or upset by stress. A yeast infection is not a sexually transmitted disease.
Your chance of getting a vaginal yeast infection is higher if you take antibiotics or use hormone contraceptives containing estrogen. Contraceptive diaphragms, intrauterine devices, and sponges may also raise the risk. Women who are pregnant, have diabetes, or who have weak immune systems also are at higher risk of vaginal yeast infections.