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A diagnosis of non-obstructive azoospermia can feel final, but it does not always mean fatherhood is out of reach. In many cases, tiny pockets of sperm production may still exist inside the testes, even when no sperm appear in the semen.

Many people with Klinefelter syndrome have no sperm seen in the ejaculate, but that does not always mean the testicles contain no sperm. In selected cases, sperm may be found directly from testicular tissue using specialist sperm retrieval surgery, most often with microdissection TESE.

Klinefelter syndrome fertility can feel confusing because semen tests often show no sperm, yet sperm may still be present in tiny areas inside the testicles. That’s why the next step usually isn’t guesswork. It’s a proper assessment with a male fertility specialist who understands genetics, hormones, sperm retrieval, and IVF.

Learn how micro-TESE works for non-obstructive azoospermia, who may benefit, sperm retrieval chances, risks, recovery and what happens if sperm are not found.