Many theories on the etiology of enuresis have been suggested, including psychogenic, structural abnormalities, dysfunctional aspects. The study consisted of 95 children with primary enuresis (35 girls, 60 boys). 58% of patients presented with enuresis plus evidence of voiding dysfunction. Patients with pure nocturnal enuresis were 17%. 42% of children have normal bladder on urodynamic testing. Anticholinergic medication was effective in children with voiding dysfunction. The base line treatment program, in children with normal urodynamic studies, included psychotherapy, medications, bladder training. Authors present their experience and results of treatment. The usefulness of urodynamic assessment in children with only nocturnal enuresis is discussed.