Distinguishing normal aging changes from cognitive dysfunction syndrome in dogs enables appropriate welfare interventions for dogs experiencing dementia.
Cognitive dysfunction in dogs causes confusion, anxiety, disrupted sleep cycles, and loss of house training that affect both the dog's welfare and the owner-dog relationship. Dogs who wake at night and vocalize are often experiencing spatial disorientation and anxiety rather than simple restlessness. The progressive nature means welfare deteriorates over months to years without intervention. Distinguishing CDS from pain, sensory loss, and other medical causes of behavioral change requires systematic assessment. Management including stable routines, night lighting, consistent environments, and appropriate medication can meaningfully slow deterioration and maintain quality of life over extended periods.