Man produces sperm from testicular tissue frozen in childhood, offering hope to cancer survivors

Man rendered infertile by childhood chemotherapy now has restored reproductive capability and opportunity to have biological children.

For generations, children who survived cancer often carried an invisible cost into adulthood: the loss of the ability to have biological children, a consequence not of the disease but of the treatment that saved them. Now, in a world-first clinical milestone, a man has produced functional sperm from testicular tissue frozen before his puberty sixteen years ago, demonstrating that reproductive potential can be preserved across the full arc of childhood and into adulthood. The achievement does not erase the difficulty of a cancer diagnosis, but it quietly expands what survival can mean — and wha

Man produces sperm from testicular tissue frozen in childhood, offering hope to cancer survivors

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