What are the causes of you to get a yeast infection?

Possible causes: Yeast infections are due to a fungus called candida which is normally found in the vagina. However, if there is a lack of healthy vaginal bacteria it can lead to overgrowth of yeast. Some causes of overgrowth: antibiotics, ^ estrogen (pregnancy or some birth control pills), malfunctioning immune system, diabetes mellitus as well as friction against vaginal tissues (intercourse) and douching.

Overgrowth : Yeast infections occur most commonly in folds of skin where sweat and moisture accumulate. If temperatures are high, naturally found yeast on the skin overgrow. Also being on an antibiotic may kill normal skin bacteria and allow yeast to overgrow.