Intrauterine insemination as a successful method in the treatment of infertility caused by oligospermia.

Intrauterine insemination combined with controlled ovarian hyperstimulation was used in treating couples with infertility problem caused by oligospermia. We reported 85 cases, with sperm number less than 20.0 x 10(6) per insemination sample. We obtained successful insemination with 0.7 x 10(6) motile sperm cells per insemination sample. We were particularly successful in treating severe oligospermia. Most of the pregnancies in our population of patients ended in delivering singletons. In conclusion, infertility caused by oligospermia may be successfully treated using IUI with controlled ovarian stimulation. Our opinion is that the accuracy of IUI timing is critical, especially when severe oligospermia is concerned.