An interesting medical journal article, which is likely to be depressing to a teenage bedwetter (and parents).
Nothing surprising in the basic findings: Parents of a 5-year-old (or even 8-year-old) bedwetter shouldn’t be very worried. First, it’s common: About 16% of 5-year-olds wet the bed, with boys about twice as likely as girls. More important, the vast majority (about 80%) of 5-year-old bedwetters will stop wetting by age 9, and 85% will outgrow it by age 19.
Unfortunately, that means that a teenager who wets the bed is unlikely to outgrow bedwetting. Most 9-year-old bedwetters will still wet the bed at age 19.
And frequent bedwetters are the ones least likely to outgrow it. Kids who wet at least 3 nights a week are more likely to continue wetting the bed. At age 5, less than 15% of bedwetters wet every night. By age 19, almost half of the remaining bedwetters wet every night.
The present finding suggesting that PNE [primary nocturnal enuresis, i.e., bedwetting] spontaneously resolves with increasing age probably applies only to those with mild enuretic symptoms. There are significant differences in characteristics between younger enuretic children and older subjects. As age increases there is an increasing proportion of enuretic patients with more severe bed-wetting. Enuretic children aged >10 years and adolescents have significantly more daytime urinary symptoms and incontinence.
“Differences in characteristics of nocturnal enuresis between children and adolescents: a critical appraisal from a large epidemiological study”, Yeung et al. Chinese University of Hong Kong and Prince of Wales Hospital, Hong Kong. BJU International. Volume 97, pages 1069 to 1073 (May 2006).