Yes. About three out of every four women will develop a yeast infection at some point in their lives. Yeast infections occur when the yeast, candida, grow excessively in the vagina and vulva. Pregnancy, intercourse, antibiotics, and a weakened immune system can all make women more likely to get a yeast infection. In addition to itching and irritation, a yeast infection will produce a thick, white, cheesy discharge.