Boys. Night-time enuresis is somewhat more common boys for unknown reasons, until adulthood when, although uncommon, is more common in females. Boys also tend to train later than girls. Parents of either sex, who had nocturnal enuresis commonly pass this on to their children, approximately 25% for one parent, 50-80% if both parents wet.
Enuresis is more com. Primary enuresis (meaning the child has always had the problem), especially nighttime enuresis, is much more common in boys and quite typically in inherited through the father.
Boys. More in boys and runs in families. 95% of boys are dry when they reach age 12.
Boys. But the difference is very small.
Boys. Boys are about 60% more likely to wet the bed than girls.