Updated September 25, 2026. Fact-checked against veterinary sources; review by a licensed veterinarian is in progress. See our editorial policy.
Quick answer: Vets don’t use one staging system for all neurological problems, but spinal cord injuries, like slipped discs, are commonly graded from mild (pain only) to severe (paralysis with loss of deep pain sensation). The grade helps predict recovery and decide between rest and surgery. Other conditions, like degenerative myelopathy, progress through stages over months.
Spinal cord injury grades (back problems)
- Grade 1: pain only, walking normally
- Grade 2: wobbly but still walking
- Grade 3: can move legs but can’t walk
- Grade 4: paralyzed, but can still feel deep pain in the toes
- Grade 5: paralyzed with no deep pain sensation
Dogs at lower grades often recover with rest. Higher grades usually benefit from prompt surgery. Deep pain sensation is one of the most important predictors of recovery.
Degenerative myelopathy
- Early: back-leg wobbliness and knuckling
- Middle: weakness progressing to back-leg paralysis
- Late: front-leg weakness
It progresses over months to a few years. Rehabilitation and mobility aids help maintain quality of life.
Epilepsy
Epilepsy is described by seizure type and frequency rather than stages. Treatment aims to reduce seizure frequency and severity.
More: recovery times.
Sources
- Merck Veterinary Manual: Nervous system disorders in dogs
- Berendt M, et al. International Veterinary Epilepsy Task Force consensus report on epilepsy definition, classification and terminology in companion animals. BMC Vet Res. 2015
- Olby NJ, et al. ACVIM consensus statement on diagnosis and management of acute canine thoracolumbar intervertebral disc extrusion. J Vet Intern Med. 2022
- Coates JR, Wininger FA. Canine degenerative myelopathy. Vet Clin North Am Small Anim Pract. 2010
This article is for general education and is not a substitute for care from your own veterinarian. Learn about The Pet Vet and our editorial policy.