In the past 20 years, various recommendations have been made about the maximum number of intrauterine insemination (IUI) cycles that should be performed, because evidence underpinning a possible limit is lacking.
Centre for Reproductive Medicine, Department of Obstetrics and Gynaecology, Academic Medical Centre, Room H4-213, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands. i.m.custers@amc.uva.nl