Bacterial vaginosis is a disease that is caused when there is an imbalance of the bacteria found in the vagina. A healthy vagina primarily has lactobacilli, which is the good bacteria. These useful bacteria are associated with the production of peroxide and lactic acid, which help protect against any infection in the vaginal area. When the lactobacilli are defeated by various types of other bacteria like mobiluncus, bacteroides, gardnerella and mycoplasma, the balance in the vaginal walls is upset, and bacterial vaginosis occurs.
There are various symptoms by which a woman can tell by herself whether she has bacterial vaginosis. The most common symptom is a fishy odor that patients complain about, and more often than not, this odor is accompanied by a yellowish discharge, which increases after sexual intercourse.
Apart from this common symptom, there are less common or secondary symptoms of bacterial vaginosis. These include swollen vagina, pain during urination, irritation and itching in the vagina and burning sensation.