Received February 20, 2019
Accepted September 03, 2019

Objective: To define the factors associated with clinical pregnancy after intrauterine insemination. Methods: retrospective study in 633 infertility couples, which made 1053 cycles of intrauterine insemination. We analyze the clinical pregnancy rate associated with different factors through the Chi-square test or Fisher's exact test. Results: The clinical pregnancy rate was 8.2% per insemination cycle and 13.6% for treated couple. The factors with greater association to clinical pregnancy were: to have more than 2 follicles, to perform the procedure without difficulty, to have 3 years or less of infertility, cervical factor as indication, use of gonadotropins and age less than 38 years. Conclusion: Intrauterine insemination requires to be accompanied by proper selection and couples’ preparation.