Bed-wetting is accidental urination during sleep. Accidental
wetting (day or night) that develops or continues after a child is normally
expected to have bladder control is called enuresis.
Accidental wetting of clothes or bedding is common in young
children, because they develop bladder control at different rates. Most
children are able to control their bladders and stop accidental wetting by 5 or
6 years of age.
A medical condition, such as a bladder infection or emotional
stress, may cause accidental wetting that develops after a child has learned to
control the bladder. In these cases, treatment or counseling may help stop the
enuresis. If an older child still experiences enuresis and it is affecting the
child's school performance or relationships with peers, treatment methods may
involve a praise and reward system, a moisture alarm, or medicine.