Leucorrhea or white discharge is a condition in which white, yellowish and sticky substances are released from the vagina. Discharge is normal for women, and every woman experiences this during their reproductive years. If discharge exceeds the normal point and becomes a thick white or yellow liquid with an unpleasant odor, it is called leucorrhea. The color of the discharge may vary and depends upon the menstrual cycle. It may not lead to any complaint like pain, itching, irritation, or burning sensation. Any infection, malignancy, and change in hormones, can cause an abnormal discharge from the vagina. Hormonal imbalance, especially of estrogen, is the major cause for the excess of vaginal white discharge. Secondary sexual characteristics also play an important role. Estrogen is the main hormone that regulates body functions in females. Untreated or ignored leucorrhea for a long time can become a chronic or severe infection. Other complications of leucorrhea include miscarriage, endometriosis, cervical erosion, scarring of the fallopian tube, difficulties in becoming pregnant.