Transcutaneous Tibial Nerve Stimulation for Spinal Cord Injury Neurogenic Bladder

Inclusion Criteria: * 18-75 years old * Traumatic or non-traumatic SCI * Admitted to inpatient rehabilitation within 6 weeks * T9 level of injury and above who are at greatest risk of morbid NGB * Regionally located to allow follow-up * English or Spanish speaking Exclusion Criteria: * History of genitourinary diagnoses (i.e. prostate hypertrophy, overactive bladder, cancer, etc.) * History of central nervous system disorder (i.e. prior SCI, stroke, brain injury, Parkinson's disease, MS, etc.) * History of peripheral neuropathy * pre-SCI symptoms of peripheral neuropathy (numbness and/or tingling in feet, sharp/jabbing/burning pain in feet, sensitivity to touch, lack of coordination, muscle weakness, etc.) * Pregnancy * Known injury to the lumbosacral spinal cord or plexus, or pelvis with associated neuropathy * concern for tibial nerve pathway injury * absence of toe flexion or autonomic dysreflexia during electric stimulation test * Potential for progressive SCI including neurodegenerative SCI, ALS, cancer myelopathy, Multiple sclerosis, transverse myelitis