Nocturnal enuresis, also known as bedwetting or involuntary urination, is not being able control your pee while sleeping, even if you are already old enough to control your bladder.
There are two kinds of enuresis: primary and secondary.
Primary nocturnal enuresis is characterized by bed wetting from babyhood while secondary enuresis develops at least six months after learning bladder control. The causes include hormonal problems, bladder problems, sleep problems, genetics, medical conditions (such as urinary tract infection and constipation), and psychological problems (such as stress). The treatments include decreasing fluid intake before going to bed, positive imagery (thinking about waking up dry), and bedwetting alarms.