<prompt> All of the following are known risk factors for the development of ovarian carcinoma except :Family history of ovarian carcinomaUse of oral pillsUse of ClomipheneBRCA - 1 positive individual  <response>: Ans. is b i.e. Use of oral pills Oral pills decrease risk of developing ovarian carcinoma. Risk factor for ovarian cancer : Factors related to ovary Personal Factors Genetic disease PCOD Ovulation inducing drugs Exogenous estrogens Family history High dietry intake of saturated fat Nulliparity Turner syndrome - increases risk of dysgerminoma and gonadoblastoma Breast ovarian cancer syndrome - related to mutation in BRCA-1 BRCA-2 HNPCC syndrome Lynch II syndrome - associated with colon cancer, Facto. ...t.;;Aeasing ovarian cancer : Oral contraceptive pills decrease risk by 50 for user of 5 years or longer Pregnancy - Risk reduction of 13 to 19 per pregnancy Breast feeding - Chronic anovulation - Multiparity Tubal ligation, hysterectomy. Remember :A simple Funda Repeated ovulation increases the risk of ovarian cancer. So, anovulation, pregnancy, multiparity and breast feeding are protective against ovarian cancer. 