Cure infertility by freezing men's testicles, say scientists

Reimplanting cryogenically frozen testicle cells into infertile men could give them the ability to conceive again, a study suggests.

Scientists were able to kick-start the production of healthy sperm in infertile mice inserted with testicular tissue harvested 20 years earlier.

Previous research on monkeys had shown it was possible using cells frozen for months — but the latest study suggests long-term freezing is also viable.

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