<prompt> Combined oral pills protect the woman against all exceptMenorrhagiaBenign breast diseasePelvic inflammatory diseaseVenous thromboembolism  <response>: OC pills are found to protect against: Benign breast disorder Ovarian cyst PID Ectopic pregnancy Ovarian cancer Side effect of pills is Venous thrombosis with or without pulmonary embolus. Reference : Park;s textbook of preventive and social medicine, 23rd edition, Page no: 502 