Some infertile men have heightened cancer risk

Those who don’t make sperm are more apt to develop malignancy

By Nathan Seppa, 09:07 AM June 21, 2013

Men who don’t produce sperm face nearly three times the risk of cancer compared with the male population average, researchers report June 20 in Fertility and Sterility.

About 4 million men in the United States are infertile, with a host of causes. Of them, about 600,000 men don’t deliver sperm from the testes to the semen at all.

Michael Eisenberg of Stanford University and his colleagues studied the medical records of Texas men who had visited a male health clinic between 1989 a...

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