Bedwetting and Boys
According to the National Kidney and Urologic Diseases Information Clearinghouse, nocturnal enuresis affects twice as many boys as girls. While experts are not exactly sure why, there have been studies, according to University of Alabama at Birmingham Health System, showing that girls tend to develop bladder control before boys.
Dr. Michael Ritchey, a pediatric urologist at the University of Texas Health Center at Houston, agrees and says this could be attributed to the fact that the pressure to urinate is higher in boys at birth, affecting their ability to hold urine. However, he says, this has never been studied in connection with bedwetting.
It could also simply be that boys' bladders mature more slowly than girls'. According to the American Academy of Child and Adolescent Psychiatry, in most cases bedwetting is caused by a slower than normal development of the child's bladder control.
Dr. Christopher Cooper, director of pediatric urology at the University of Iowa, points out that this difference between boys and girls tends to disappear by the time they reach adolescence.
And while boys are more likely to wet the bed, there is no apparent difference in the severity of bedwetting or age of dryness between boys and girls.