<prompt> Most common cause of Dysfunctional Uterine Bleeding:PIDEndometriosisDermoid cystAnovulatory  <response>: Ans. d AnovulatoryRef.: Shaws 15th ed. 1301-307 Dysfunctional uterine bleeding is irregular, abnormal uterine bleeding that is not caused by a tumor, infection or pregnancy. Dysfunctional uterine bleeding is a disorder that occurs most frequently in women at the beginning and end of their reproductive lives. It is of 2 types: Ovulatory: after adolescent years and before perimenopausal years. Anovulatory: postmenarcheal, premenopausal. Half of the cases occur in women over 45 years of age and about one fifth occur in women under age 20. Dysfunctional uterine bleeding is diagnosed when other causes of uterine bleeding have been eliminated. Failure of the ovary to release an egg anovulatory during the menstrual cycle occurs in about 70 of women with DUB. This is probably related to a hormonal imbalance.Also Know Normal menstruation duration: 28 - 7 days, mean of 4 days duration, not more than 7 days Menorrhagia or hypermenorrhea: prolonged 7 days or excessive 80 ml bleeding at regular intervals Metrorrhagia: bleeding in irregular but frequent intervals, variable amount Menometrorrhagia: prolonged bleeding at irregular intervals Polymenorrhea: bleeding in regular intervals 21 days Oligomenorrhea: regular intervals 35 daysEndometriosisAdenomyosis It is also a cause of DUB. Presence of endometrium outside uterus. MC site: ovary Rarest site: CNS In ovary, it present at chocolate cyst ovary. Present with menorrhagia, pain, Infertility. MC symptom: Congestive Dysmenorrhea. Gold standard Inv: Laparoscopy diagnostic therapeutic Also a cause of DUB Presence of endometrial gland in myometrium Seen in patients around 40 years. Present with menorrhagia, dysmenorrhea and pain BUT no Inftertility. Uterus is tender and enlarged: 12-14 week size. Diagnosed with Histopathology. Treatment of choice: Hysterectomy 