Timing of IUI Treatment after hCG Administration 1–48 h Affecting Pregnancy Rate

ObjectiveTo compare the different time of administration of hCG affecting pregnancy rate of IUI.MethodsA total of 189 infertile couples underwent 331 cycles of IUI with husband's sperm. They were separated into 3 groups according to the time of hCG administration in IUI: hCG 1–23 h (group A); hCG 24–36 h (group B); hCG 37–48 h (group C).ResultsThere were no statistical differences among 3 groups. None of the other relative factors, such as the female age, the different methods of ovulation and the cause of infertility, showed differences in pregnancy rate among 3 groups.ConclusionIUI can be performed any time after administration of hCG (1–48 h).