Aim: Comparison between the results of the oocyte retrieval technique and the conversion to the intra-uterine insemination (IUI) technique in cases with poor ovarian response to the controlled ovarian hyperstimulation (COH) procedure. Patients and methods: It is a retrospective observational study in women with poor ovarian response to COH which is defined as estradiol (E2) peak level <1000 pg/mL or with 64 follicles which are P14 mm in diameter. Four hundred and sixteen cases were reported as

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... oor responders in 2 IVF centers since December 2007 to July 2010. One hundred and fifty two cases of them proceeded to the oocyte retrieval procedure. These cases were assigned as group (A). Sixty eight cases converted to IUI and were assigned as group (B). One hundred and ninety six cases canceled their cycles. These cases were not included in the current study. Our data were collected from the databases of two In Vitro Fertilization (IVF) centers and analyzed retrospectively to compare the results of the different applied techniques in the studied groups. The main measured outcome parameters were the clinical pregnancy rate and the live birth rate. Results: The group of cases proceeded to the oocyte retrieval procedure had a higher basal Follicle Stimulating Hormone (FSH) level, needed a longer duration of stimulation with higher Human Menopausal Gonadotropin (HMG) doses and had higher E2 peak levels. The clinical pregnancy * Corresponding author.