Dysfunctional uterine bleeding (DUB) refers to the heavy bleeding in the vagina, which is caused by hormonal changes in the body. Excessive loss of blood during dysfunctional uterine bleeding can result in interference in the emotional wellbeing, physical health and social and material life of the woman. It happens to set in when eggs are not released by the ovaries.

Dysfunctional uterine bleeding is characterized by excessive bleeding or spotting from the vagina, periods that are apart by less than 28 days or more than 35 days, changing interval between successive periods, and bleeding that lasts for longer than usual or for more than seven days. Other major symptoms of the disorder include excessive hair growth on the body, mood swings, hot flashes and dryness and tenderness in the vagina.