Incidental spina bifida occulta in functional enuresis observed during laser reflexo therapy

The etiology of persistent functional enuresis in children is ill understood. A wide range of therapeutic modalities have been tried. During investigations preceding a trial of laser reflexo therapy in functional enuretic children aged 7 to 10 years spina bifida occulta was observed in 86.6% of subjects. The lesions were predominantly at the L5-6 level. There were no cutaneous stigmata in the form of lipoma, tufts of hair, or dermal sinus at the back. Neurologic examination was unremarkable and there were no associated skeletal malformations. This strong association of spina bifida occulta with functional enuresis is higher than the reported incidence of 16.5% to 34% in normal children. This strong association hitherto unreported, raises an interesting issue in the search for the etiopathogenesis of functional enuresis.