Spasticity has been defined by Lance as “a motor disorder characterized by a velocity–dependent increase in tonic stretch reflexes with exaggerated tendon jerks, resulting from hyperexcitability of the stretch reflex, as one component of the upper motor neuron syndrome.” Clinically positive and negative signs and symptoms are noted; the former include clonus, hyperreflexia, and spasms, while the latter include fatigue, incoordination, and weakness. Several outcome measures are available to objectively evaluate spasticity in the clinical setting including the Ashworth and Modified Ashworth Scales, Spasm Frequency Scale and the Tardieu Scale. In order to diagnose spasticity in an individual with spinal cord injury the clinician must gather information regarding the patient’s objective complaints of spasms/spasticity, focusing on both negative and positive symptoms. Identifying the type and severity of muscle tone and how it interferes with the patients’ and families’ quality of life and functional goals enables providers to develop an appropriate treatment plan.