[Urinary retention without subvesical obstruction. Differential diagnostic considerations].

Acute urinary retention without subvesical obstruction is associated with neurogenic or nonneurogenic disorders of bladder function. Urodynamic investigations differentiates sensoric and/or motoric disturbances of the micturation. Neurologic and laboratory examinations are necessary to clear the etiology. Symptomatic urological treatment and specific etiological therapy should be used to manage this entity.