Abstract

Objective: Severely oligozoospermic men typically present with very limited spermatozoa in their ejaculates. When these samples are used for ICSI, reduced fertilization and pregnancy are generally observed. As an alternative treatment modality, testicular sperm may be obtained through open or percutaneous biopsy and used as a substitute for ejaculated sperm. The purpose of this study was to determine which sperm origin, ejaculated or testicular, produces more favorable fertilization and pregnancy outcomes in couples seeking treatment for severe oligozoospermia.

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