Incoördinations of the Bladder
Abnormal conditions of the bladder will cause difficulty in retaining the urine for a normal length of time. An inflammation of the bladder is greatly exaggerated by the presence of urine, therefore an irritation would be set up which would result in a desire to empty the bladder. This would invariably result in nocturnal enuresis. An interference with the transmission of motor mental impulses to the sphincter muscle would be another cause for bed wetting. In this case, it would be impossible to retain the urine after a certain amount had passed into the bladder. This would result in enuresis, since there would be nothing to prevent the urine from passing freely from the bladder.