To determine whether you have a yeast infection or bacterial vaginosis, it is important to pay attention to the symptoms. Bacterial vaginosis is usually accompanied by colored discharge with an unusual odor, often described as fishy. This discharge may increase after sexual intercourse and can be accompanied by vaginal irritation. On the other hand, yeast infections typically cause itching, along with whitish vaginal discharge that resembles cottage cheese. Swelling or irritation in the vaginal area may also be present. If you are experiencing these symptoms for the first time, it is recommended to see a doctor for a proper diagnosis and treatment.