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2nd September 2014
01:32pm BST

The study was taken on the 172 men when they were in hospital for urological surgery. The second and fourth fingers on their right hand were measured first, before a separate researcher came in and measured the testicular area to ensure independent results.
The findings could have implications on research into men's fertility, as testicle size affects the volume of semen produced.
Meanwhile, no link was found between age, height and the size of a man’s testicles.
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