Pregnancy rate after homologous insemination.

Homologous insemination (AIH) was performed in 151 patients. The pregnancy rate was 27% in 143 patients treated with the cervical cap method. In cases of large ejaculate volume the split-ejaculate technique was applied to several types of sperm quality, resulting in a pregnancy rate of 43%. Of 36 women with diminished fertility, five (14%) became pregnant. The motility of the spermatozoa was correlated with the success rate, with 30% good progressive motility thought necessary to consider insemination.