Canine cognitive dysfunction syndrome (CDS) is a neurodegenerative condition similar to Alzheimer's disease, affecting millions of elderly dogs. Recognition, management, and compassionate end-of-life care are key welfare responsibilities.
Canine cognitive dysfunction causes genuine suffering that is often invisible to owners who attribute behavioral changes to "just getting old." A dog that wakes at 3am confused and anxious, that stands staring at walls, or that no longer recognizes familiar family members is experiencing real distress. Understanding CDS as a disease rather than normal aging prompts owners to seek treatment and management that can meaningfully improve quality of life. Welfare-centered care for dogs with CDS includes appropriate medical management, adapted environments (nightlights, ramps to favorite spots, maintained routines), patience with house training regressions, and honest quality of life monitoring. As with human dementia, knowing when quality of life has declined beyond what management can support is one of the most difficult and important welfare decisions owners face.