It is the inability to maintain urinary control during sleep. Primary enuresis refers to inability to maintain urinary control from infancy. Secondary enuresis is a relapse after control has been achieved. Medical disorders like diabetes, urinary tract infection, sleep apnea or epilepsy can cause it.
Psychiactric disorders can also be a cause.
To be considered sleep enuresis, there has to be at least two episodes per month in children 3 to 6 years and at least one episode per month for older individuals. Sleepwalking can also occur during an episode. A full physical should be done to rule out medical conditions. There are various techniques used when medical conditions have been ruled out. Diagnostic Classification Steering Committee, Thorpy MJ, Chairman.