Bedwetting is the most common childhood urologic complaint ^[1] and one of the most common pediatric-health issues.^[2] Most bedwetting, however, is just a developmental delay—not an emotional problem or physical illness. Only a small percentage (5% to 10%) of bedwetting cases are caused by specific medical situations.^[3] Bedwetting is frequently associated with a family history of the condition.^[4] Most girls can stay dry by age six and most boys stay dry by age seven. By ten years old, 95% of children are dry at night. Studies place adult bedwetting rates at between 0.5% to 2.3%.^[5]

Males are more likely to wet the bed than females. Males make up 60% of bed-wetters overall and make up more than 90% of those who wet nightly (Schmitt, 1997).

Doctors frequently consider bedwetting as a self-limiting problem, since most children will grow out of it.

Approximate bedwetting rates are:

• Age 5: 20%
• Age 6: 10 to 15%
• Age 7: 7%
• Age 10: 5%
• Age 15: 1-2%
• Age 18-64: 0.5%-1% [3]

Children 5 to 9 years old have a spontaneous cure rate of 14% per year. Adolescents 10 to 18 years old have a spontaneous cure rate of 16% per year.

As can be seen from the numbers above, 5% to 10% of bedwetting children will not outgrow the problem, leaving 0.5% to 1% of adults still dealing with bedwetting. [4]Individuals who are still enuretic at age 18 are likely to deal with bedwetting throughout their lives. Adult rates of bedwetting show little change due to spontaneous cure. [5]

Studies of bedwetting in adults have found varying rates. The most-quoted study in this area was done in the Netherlands. It found a 0.5% rate for 18-64 year olds. A Hong Kong study, however, found a much higher rate. The Hong Kong researchers found a bedwetting rate of 2.3% in 16 to 40 year olds. [6]

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