Cryptorchidism affects about 6 percent of all newborn boys. In some cases the testes descend on their own in the first few months of life. But, if they don’t, doctors recommend surgery to correct the problem when the boy is between 6 and 18 months old.
That surgery is to protect the boy’s fertility, not to prevent cancer, says the study co-author, Dr. Robert Carachi, a professor in the department of surgical pediatrics at the Royal Hospital for Sick Children in Glasgow.
If the testes were left inside the abdomen, the temperature would be too high and the boy would have fertility problems, Carachi explains.