How low is too low? Postwash total motile sperm count effect on pregnancy outcomes in intrauterine insemination.

Intrauterine insemination (IUI) is a frequently used method to treat couples with infertility. There is evidence of decreased pregnancy rates with a total motile sperm count (TMSC) of less than 10 million, yet there remains to be a consensus on semen parameters for which to recommend IUI in the infertile population. The aim of this study was to determine a minimum threshold of TMSC on semen analysis to offer IUI cycles.