According to surveys, what percentage of dogs aged 7+ years show at least one behavioral change indicative of CDS?

• A. 50%
• B. 75%
• C. 25%
• D. 90%

Answer: (B)

Canine Cognitive Dysfunction is common in aging dogs, and surveys consistently find that about three-quarters of dogs seven years and older show at least one behavioral change indicative of CDS. This high prevalence means many senior dogs exhibit signs such as disorientation, altered sleep-wake cycles, reduced activity, changes in social interactions, or new housetraining issues. Because CDS is so prevalent, routine screening during senior wellness visits is important, using caregiver observations to guide early management through environmental enrichment, mental stimulation, and medical guidance as needed. The 75% figure represents the best-supported estimate across studies compared with the other options when considering how commonly CDS-related changes appear in older dogs.