The main cause of bedwetting in children stems from a maturation delay in the child’s bladder-to-brain neural pathway resulting in the inability of your child to recognize that their bladder is full. In other words, the bladder full signal that you and I feel is “lost” and is never consciously sensed by your child.
Arousal from deep sleep is also a leading cause of bedwetting and can result in your child being unable to wake up when their bladder is full. Bedwetting can also be caused by your child’s kidneys producing too much urine during sleep or their bladder is unable to effectively hold urine. Bedwetting also tends to run in families suggesting there is a strong hereditary link.
To control one’s urination and bladder function is a behaviorally learned and conditioned process, not unlike learning how to walk or talk, that requires first learning to recognize the bladder full signal from the brain and then to consciously control suppressing one’s bladder. Bedwetting is classified as being nocturnal (nighttime) or diurnal (daytime) representing 75% and 25% respectively with twice as many boys affected by bedwetting as girls.