InfertilityObjective-To assess the value of vaginal sonographic hydrotubation as a preliminary test of uterine configuration and tubal patency in infcrtility investigation, and to compare this new test with hysterosalpingography. Design-A prospective blind comparison of the two tests in an unsclected group of infertile women. Setting-Hillbrow Hospital, Johannesburg, South Africa. Subjects-Sixty women undergoing routine infertility investigations agreed to participate in the study. There were no refusals.is a major problem affecting at least