The exact causes of primary nocturnal enuresis are not fully understood, but several factors may contribute:
Genetics: A family history of bedwetting increases the likelihood. Developmental factors: Some children may have a slower maturation of the central nervous system, affecting bladder control. Bladder capacity: A smaller bladder capacity can lead to an inability to hold urine overnight. Hormonal factors: Low levels of antidiuretic hormone (ADH) during the night may result in increased urine production. Sleep patterns: Deep sleep may prevent the child from waking up to the sensation of a full bladder.