<prompt> Menorrhagia is defined as blood loss per vagina more than -80 ml110 ml150 ml50 ml  <response>: Ans. is a i.e. 80 ml Ref Shaws, 13e, p 291 12e, p. 229. Menorrhagia - when blood loss is more than 80 ml Oligomenorrhea - when blood loss is less than 20 ml 