Patients with spinal cord injury usually have voiding dysfunction, changes in urethral anatomy and urologic pathophysiology, and consequently changes in urodynamics, which can easily lead to recurrent urinary tract infections, urinary stones, and even hydronephrosis and renal impairment if not managed properly. Therefore, it is important to assess urinary tract dysfunction as early as possible to determine the correct stage of bladder management and to manage it appropriately. The methods used to assess bladder dysfunction include recording a voiding diary, measuring bladder volume and residual urine, urodynamic testing, urography, urologic ultrasound, urinary routine, mid-stage urine culture, and renal function tests. 1.Urological management measures 1）Stop indwelling urinary catheter as early as possible and implement intermittent catheterization. Specific requirements: daily control of water intake at 1500-2000ml, preferably at 10:0020:00 balanced intake of about 125ml per hour, so that the 24h urine volume is controlled below 2000ml; interval 4-6 urine 1 time, each time the bladder volume does not exceed 500ml during catheterization; adjust the number of catheterization according to the residual urine volume: if the residual urine volume is above 200ml, catheterize 4 times daily ; 150-200ml residual urine volume, 3 times daily catheterization; 100-150ml residual urine volume 2 times daily catheterization; 80-100ml residual urine volume 1 time daily catheterization; below 80ml residual urine volume can stop catheterization. 2) Appropriate voiding methods and medications should be applied according to the results of urodynamics to keep the bladder in a state of low pressure storage (<40cmH20, 1cmH20=98.0665Pa) and low pressure voiding (<60cmh20). 3) Regularly check urinary ultrasound, urinary routine, midstream urine culture, and urodynamics. 4) Cultivate good personal hygiene habits and pay attention to keep the perineum clean 5) Oral medication can be taken to prevent stone formation. 6) For long-term asymptomatic bacteriuria no need to apply antibiotics to avoid causing multi-drug resistant bacteria reproduction and risk of infection. 2, treatment 1, for urinary tract infection (diagnostic criteria: urinary routine leukocytes > 10/HP or bacterial count > 105/ml, along with at least two of the following symptoms: fever, overfilled bladder, lower abdominal pain, increased urinary incontinence, vegetative hyperreflexia, cloudy urine with odor, discomfort in the kidney area with knocking pain, general malaise, etc.) treatment: leave the urinary catheter until the discomfort disappears urinary routine normal Treatment of stones: lithotripsy, endoscopy or extracorporeal shock wave lithotripsy, laser lithotripsy, etc. 3, the treatment of hydronephrosis: for mild to moderate hydronephrosis can be retained urinary catheter or intermittent catheterization plus drug therapy; for severe or recurrent hydronephrosis can be treated by cystostomy, sphincterotomy, botulinum toxin bladder wall injection, mesh urethral stent implantation, anti-reflux surgery or urinary diversion, etc.