Dog Degenerative Myelopathy: Progression and Care

Degenerative myelopathy is a progressive neurodegenerative disease in dogs causing gradual hind limb paralysis with significant welfare implications.

Key Facts

DM is caused by mutations in the SOD1 gene, most prevalent in German Shepherds, Boxers, and Corgis
The disease begins with hind limb weakness and progresses to complete paralysis over 6-18 months
DM is painless, though the neurological deficits cause increasing difficulty with movement and bodily functions
DNA testing identifies at-risk dogs before breeding decisions
Physical rehabilitation including hydrotherapy can maintain muscle mass and slow functional decline
Wheelchairs and carts allow affected dogs to remain mobile and engaged during mid-stage disease
End-of-life timing decisions are guided by loss of ability to stand, incontinence management difficulty, and quality of life

Welfare Considerations

DM's progressive nature creates evolving welfare challenges. While the disease is not painful, affected dogs experience increasing frustration with inability to perform normal movements. Urinary and fecal incontinence causes skin irritation and hygiene challenges. Wheelchairs and rehabilitation maintain engagement and quality of life significantly. Welfare-centered care focuses on maintaining dignity, mobility, and joyful activities as long as possible.

What You Can Do

Test dogs of susceptible breeds for SOD1 mutations before breeding to reduce DM prevalence
Enroll affected dogs in physical rehabilitation programs to slow functional decline
Use carts and wheelchairs when hind limb weakness impairs mobility - many dogs adapt readily
Monitor skin integrity and hygiene in incontinent dogs to prevent sores and discomfort
Assess quality of life regularly using validated tools to guide end-of-life decisions
Connect with DM support groups for guidance on adaptive equipment and care strategies