Whether it's persistent itching, an abnormal discharge, or irritation, when things aren't right in your vaginal area, you know it. Most women experience vaginal problems at some point in their lives, and the three most common issues that occur are yeast infections, trichomoniasis, and bacterial vaginosis. While these concerns do have some similar symptoms, their causes are completely different. The treatment for each is different too, so knowing exactly which one you have is crucial to getting rid of the infection quickly and effectively, and avoiding potential complications.