&NA;A review of the literature concerning the more common complications of pregnancy indicates that recurrence risks are available for most and can be summarized as follows: hydatidiform mole—1.3 to 2.9 per cent; recurrent miscarriage—20 to 30 per cent; ectopic pregnancy—20 to 30 per cent; severe preeclampsia—7.5 per cent; mild preeclampsia—29 per cent; preterm labor— 15 per cent after one and 30 per cent after two. While recognizing that each individual case merits full investigation and careful assessment, it is proposed that these risk figures provide a useful basis for use in pre‐ and postpregnancy counseling.