<prompt> Definition of recurrent pregnancy loss classically isTwo or more consecutive pregnancy losses 20 weeks gestation or with a fetal weight 500 gThree or more consecutive pregnancy losses 20 weeks gestation or with a fetal weight 500 gFour or more consecutive pregnancy losses 20 weeks gestation or with a fetal weight 500 gFive or more consecutive pregnancy losses 20 weeks gestation or with a fetal weight 500 g  <response>: Recurrent pregnancy loss RPL is classically defined as three or more consecutive pregnancy losses 20 weeks gestation or with a fetal weight 500 g. Mindful of this threshold, data from two large studies showed the risk for a subsequent miscarriage to be similar whether the following two or three prior pregnancy losses Hence the American Society for Reproductive Medicine 2013 now defines RPL as two or more failed pregnancies confirmed by sonographic or histopathological examination. Reference: Williams Obstetrics; 25th edition; Chapter 18; Aboion 