The pattern of infertility cases at a university hospital.

Pattern of infertility cases attending the gynaecologic out patient clinic of Ogun State University Teaching Hospital, Sagamu Nigeria is presented. The incidence of infertility was found to be 14.8% with a mean duration of 3.38 +/- 1.65 years. Secondary infertility predominated with 78.3% incidence. About three quarters (71.1%) were between 25 and 34 years of age and only 6.0% were below 25 years of age Nullipara constituted majority of cases with 56.6%. Past history of induced abortion was significantly present in those with tubal blockage. Male factor only was the cause in 26.8%, female factor only in 51.8% and both male and female factors were contributory in 21.4% cases. The male partners refused semen analysis in about one third of cases (32.5%).