Canine cognitive dysfunction syndrome (CDS) affects most very old dogs. Understanding the condition helps owners recognize signs early and implement welfare-protective management.
Cognitive dysfunction causes genuine psychological suffering in affected dogs through confusion, disorientation, and disrupted sleep that impairs normal daily experience. Dogs with CDS may become anxious in familiar environments, forget housetrained behaviors, vocalize throughout the night, and fail to recognize family members. The progressive loss of the dog's personality and the anxiety of their disorientation represents a profound welfare decline. Early recognition and intervention with available treatments and management strategies can slow progression and maintain better daily function. The welfare goal is preserving the dog's capacity for positive daily experiences for as long as possible.