Dysfunction uterine bleeding (DUB) also called as abnormal uterine bleeding.DUB is irregular uterine bleeding that occurs in the absence of medical or pathological illness.
Disruption in the normal cyclical pattern of ovulatory hormonal stimulation of endometrial lining and unpredictable bleeding for example heavy,light, prolonged,
frequent or random which occurs mainly because of anovulatory menstrual cycles.
Polycystic Ovary Syndrome (PCOS) is an endocrine disorder in a women where increased amount of sex hormones occurs which leads to imbalance in estrogen and progesterone making menstrual cycle irregular. Imbalances in the thyroid cause this problem.
Endometriosis-occurs when uterine lining grows outside of the uterus like on ovaries leading to heavy bleeding.
Uterine fibroids- small growth which occurs within the uterus, uterine muscle or uterine lining cause is unknown but estrogen has a role in it.
Uterine Polyps- polyp is a growth which occurs within uterus where the cause isunknown. The poly is heavily influenced by hormone estrogen small blood vessel in the polyps can cause DUB or spotting between periods.
Sexually transmitted diseases (STDs)-inflammation like Gonorrhea and Chlamydia may cause DUB.
Cervix infection and uterine cancer can also cause bleeding.
Birth control pills