Boys born small may be at risk for infertility in adulthood. Danish researchers examined birth and health records of 10,936 men and women born between 1984 and 1987. The study, in Human Reproduction, found that 10 percent of the babies were born small for gestational age. Some of the men were born with genital malformations, and when they eliminated those babies, the men born small were 37 percent more likely to be infertile, though that association did not reach statistical significance. “It’s important to say that not all men born small for gestational age are at increased risk.

Source: New York Times December 19, 2019 20:48 UTC