Abstract: ObjectiveTo investigate the clinical manifestation, mechanism and optimal treatment of hydronephrosis after spinal cord injury. Methods58 slight and moderate cases were retrospectively analyzed. ResultsThere were no differences in the remitted time among the therapies of indwelling catheter, intermittent catheterization and medicine, mixed therapy. 56 (96.55%) SCI hydronephrosis remitted after treatment, 28(48.28%) recurred within 3 months. The recurrence rate of the patients with detrusor sphincter dyssynergia (57.14%) was higher than that of the detrusor hyperreflexia (28.57%) and the detrusor hyporeflexia (14.29%). The recurrence was associated with the fact that many patients couldn't keep up with the systematic therapy.ConclusionThe onset of SCI hydronephrosis is indistinct and recurrent easily. Keeping up with intermittent catheterization and taking medicine can prevent SCI hydronephrosis recurrence effectively.

Key words: spinal cord injury, hydronephrosis, urodynamics, diagnosis, treatment, rehabilitation