Leucorrhoea is normal. Every month a woman's body makes this fluid to prepare for a possible pregnancy. Though it is more common to occur during pregnancy, it is still normal to have white discharge when you are not pregnant. Vaginal discharge contains bacteria and dead cells; the process of discharge keeps the vagina healthy and clean. The amount and appearance of discharge naturally change throughout the menstrual cycle. The discharge can be a worry when you have symptoms of itchiness, burning and discomfort. It can be a sign of an infection or a serious illness.