Spermagglutinating antibodies: a comparison of three different techniques.

In 136 patients tests were performed to demonstrate circulating spermagglutinating antibodies. In patients with "unexplained" infertility (15 cases) antibodies were demonstrated in six (40%) whereas in patients where another cause for infertility was present (101 cases) additional positive spermagglutinating antibodies were demonstrated in 15 (15%). In the 21 cases with spermagglutinating antibodies the Friberg test was positive in 17 cases (81%), the Kibrick test in 14 cases (67%) and the Franklin-Dukes test in four cases (19%).