
The vagina serves as a passageway between the outside of the body and the inner reproductive organs. The pH balance of the vagina is acidic, which discourages infections from occurring. This acidic environment is created by normally-occurring bacteria. A healthy vagina produces secretions to cleanse and regulate itself, similar to how saliva cleanses and regulates the environment of the mouth. These vaginal secretions are normal vaginal discharge. Any interference with the delicate balance of vaginal secretions sets up an environment conducive to infection.