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.
All women have some vaginal discharge.
It may also contain white flecks and at times may be thin and stringy. Changes in normal discharge can occur for many reasons, including menstrual cycle, emotional stressors, nutritional status, pregnancy, usage of medications - including birth control pills, and sexual arousal. The menstrual cycle affects the vaginal environment. You may notice increased wetness and clear discharge around mid-cycle. The pH balance of the vagina fluctuates during the cycle and is the least acidic on the days just prior to and during menstruation.