 [ Symptoms ] my 14 year old daughter complained of terrible stomach pain took her to the doctor… [ Disease ] although yeast is the name most women think of when they think of vaginal infections bacterial vaginosis bv is the most common type of vaginal infection in women of reproductive age bv is caused by a combination of several bacteria these bacteria seem to overgrow in much the same way as do candida when the vaginal balance is upset the exact reason for this overgrowth is not known