For women of childbearing age, the periodic secretion of estrogen and progesterone by the ovaries, which indirectly stimulates the shedding of cervical mucus cells and vaginal wall cells, results in periodic discharge, which is often a normal physiological manifestation. However, if there is abnormal discharge, such as yellow leucorrhea or purulent leucorrhea, it should be considered as vaginitis or cervicitis. It is necessary to go to the gynecological department for a routine examination of the leucorrhea to confirm the type of vaginitis. For older women, since the ovaries are already failing at this time, it is not normal to have abnormal discharge continuously, which may be caused by cervical cancer in addition to vaginitis.