A vaginal yeast infection is caused by too many yeast cells in the vagina. This is common in women of all ages. Itching, vaginal discharge and irritation, and other symptoms can bother you. But yeast infections don’t often cause other health problems.
Some medicines can increase your risk of getting a yeast infection. These include antibiotics, birth control pills, hormones, and steroids. You may also be more likely to get a yeast infection if you are pregnant, have diabetes, douche, or wear tight clothes.
With treatment, most yeast infections get better in 2 to 3 days.