A certain amount of vaginal discharge (fluid that flows out the vaginal opening) is normal. The vaginal walls and uterine cervix contain glands that produce a small amount of fluid that helps to keep the vagina clean. This normal fluid is usually clear or milky white and does not have an unpleasant odor. The normal vaginal discharge is thicker at specific times of the menstrual cycle (at the time of ovulation), during breastfeeding, or during sexual arousal.
An increase in the amount of vaginal discharge, an abnormal odor or consistency of the fluid, or pain, itching, or burning that accompanies vaginal discharge can all be signs of infection or other more serious disorders.