There are several reasons you might be experiencing symptoms that resemble those of a yeast infection.
Herpes, genital warts and trichomoniasis (trich) can also cause irritation, itchiness, and discharge that has a slight odor. With other sexually transmitted diseases, such as gonorrhea, you don’t always have symptoms, but you might experience pain and burning when you pee.
STDs often need a different kind of treatment than a yeast infection. For example, trich isn’t caused by a fungus. It’s caused by bacteria. To treat it, you’ll usually need to take strong antibiotics for a short period of time.