Yeast infections have a smell similar to the yeast used in bread or beer, as stated by RepHresh.com. Yeast infections often do not produce any odor at all. Other symptoms of a yeast infection include itching and burning around the vulva.
Additional symptoms are swelling of the vulva, a thick discharge resembling cottage cheese, pain during sexual intercourse and a burning sensation while urinating, according to Everyday Health. A fishy odor is indicative of the bacterial infection bacterial vaginosis, not a yeast infection. Bacterial vaginosis is usually accompanied by a gray-white vaginal discharge that is pasty or yogurt-like.