Injection of Fresh versus Frozen testicular sperms in azoospermic males undergoing ICSI.

Abstract

Infertility affects approximately 14% of the reproductive aged couples world wide. Around 30% of the causes are male factor infertility. Approximately 10% to 15% of those infertile men are azoospermic. Azoospermia, defined as recurrent, complete absence of sperm after centrifugation from the ejaculate. It is less than 1% among all men. Obstructive azoospermiza comprises 40% of cases and is typically caused by a blockage in the excurrent ductal system. OA is usually accompanied by preservation of normal endocrine and exocrine function with normal spermatogenesis in the testis. Non Obstructive Azoospermia restults from primary testicular failure, secondary testicular failure or incomplete (ambiguous) testicular failure.