Because yeast can be present normally in the vagina of healthy women, not all yeast infections can be prevented. However, it is possible to take preventive measures that may reduce your risk of getting a yeast infection. These include always cleaning the genital area from front to back and changing out of wet bathing suits or damp clothes as soon as possible. Wearing loose-fitting cotton underwear can help reduce moisture and prevent yeast infections. Since chemical irritants can influence the balance of bacteria in the vagina, avoiding products with potential irritants like douches or scented tampons can also help. Regular baths or showers are an adequate way to cleanse the vagina, and douching is not recommended and may actually increase your risk of yeast infection.

Some evidence shows that consumption of foods with probiotics (healthy bacteria that are normally found in the body) like probiotic-containing yogurt may help prevent yeast infections.