In depends on the cause of male infertility. For example, severe male factors such as azoospermia require a testicular biopsy to obtain viable sperms.
The odds of success of ICSI depend on the expertise of the embryologist to select the most viable live sperm out of the ones retrieved from the testis, with good motility and morphology. If sperms with this characteristics were found, the success rates will be similar to those of a cycle with non-affected sperm. The success rates are 22% approximately.
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