Used in the treatment of Male infertility, Testicular Sperm Extraction, (TESE) involves removing small samples of testis tissue for processing and eventual extraction of sperm. This procedure is typically performed in conjunction with a particular type of In Vitro Fertilization (IVF) called Intra Cytoplasmic Sperm Injection (ICSI). This procedure typically lasts approximately one hour and is done in an outpatient setting.