Leucorrhoea is a vaginal discharge produced by the cells of the vagina and cervix. This is a mixture of liquid, cells and bacteria to lubricate and protect the vagina. It can appear at any stage of female life. When it happens in adolescent females it can be a sign of first menses and PUBERTY. It is normal when discharge is thin, white, bland, and without any smell. But when it becomes yellow, offensive and causes itching or irritation then it can be due to infection, malignancy or hormonal imbalance.