• Antisperm antibodies;
  • intrauterine insemination;
  • unexplained poor postcoital test

PROBLEM: To determine the impact of the presence of antisperm antibodies (ASAs) in the cervical mucus of female partners in couples with unexplained poor postcoital tests (PCT). Furthermore, the efficacy of intrauterine insemination (IUI) in these same patients was determined by pregnancy rates (PRs).

METHOD: Pregnancy rates following IUI in patients with infertility and poor postcoital tests, whether the cervical mucus was positive or negative for ASAs, were evaluated.

RESULTS: The 6-month PRs were similar in the ASA negative (40.5%) versus the positive (42.4%) group.

CONCLUSIONS: It appears that the antifertility effect of ASA may be mainly the immobilization of sperm in the cervical mucus, and thus, performing IUI may effectively correct the problem.