TENS Trial to Prevent Neuropathic Pain in SCI

Inclusion Criteria: * Age ≥ 18; * Traumatic spinal cord injury; * Date of injury occurring within four months of study enrollment. Exclusion Criteria: * More than four months since date of injury; * Contraindications for the study intervention, transcutaneous electrical nerve stimulation (TENS),88 including: * Implanted electronic device such as a pacemaker; * Cardiovascular problems; * Pregnancy; * Epilepsy; * Cancer; * Persons with a spinal cord injury at the C2 level, as placement of TENS electrodes on the neck is not recommended; * Cognitive dysfunction which limits the ability of the participant to adequately understand procedures and risks. * Prisoners * Pregnant Women Special populations: * Adults unable to consent: excluded from study * Individuals -who are not yet adults: individuals who are less than 18 years old will be excluded from the study * Pregnant women: Women who are known to be pregnant will not be recruited into the study. A pregnancy test will be administered to females prior to enrollment in TENS (or sham) treatment. Women who become pregnant before or during the 8-week TENS treatment period will be discontinued from the study. Women who become pregnant after the 8-week TENS treatment portion of the study will continue to be enrolled, and followed according to protocol guidelines (no information will be collected specifically on the pregnancy or fetus). * Prisoners: excluded from study * Neonates: not applicable