Cognitive Dysfunction Syndrome (CDS) in Senior Pets: Signs, Treatment, and Care

As our beloved companions grow older, changes in their behavior can be subtle but significant. What may seem like “normal aging” could actually be an early sign of Cognitive Dysfunction Syndrome (CDS)—a neurobehavioral disorder that affects both dogs and cats, similar to Alzheimer’s in humans. While it’s easy to attribute forgetfulness, disrupted sleep, or increased vocalization to old age, CDS is underdiagnosed, and early intervention can make a world of difference.

Why It Matters

Recognizing and understanding CDS in aging pets is crucial because early support can make a real difference in their comfort, confidence, and connection with us. It’s easy to dismiss changes like forgetfulness, disrupted sleep, or increased vocalization as “just old age,” but these can be signs that our pets need extra help navigating their golden years.

When we catch CDS early, we can take small but meaningful steps—like adjusting their environment, providing enriching activities, or adding nutritional and medical support—to slow its progression and ease their experience. This not only helps them feel more secure and engaged but also deepens the bond we share.

Without this awareness, pets may struggle in ways that could be preventable, and caregivers may feel overwhelmed, not realizing there are effective ways to help. Sadly, misunderstandings about cognitive changes can even lead to premature decisions about care. But with knowledge, compassion, and thoughtful adjustments, we can honor our pets’ aging process, ensuring they continue to feel safe, loved, and truly at home with us for as long as possible.


Early Signs of Cognitive Dysfunction in Senior Dogs & Cats

Cognitive functions like perception, awareness, learning, and memory help pets navigate the world. When these functions decline, pets may exhibit:

  • Disorientation – Wandering aimlessly, staring at walls, or seeming lost in familiar spaces.

  • Changes in social interactions – Becoming withdrawn or, conversely, more clingy.

  • Sleep disturbances – Increased nighttime restlessness and daytime lethargy.

  • House soiling – Forgetting previously learned potty routines.

  • Decreased exploratory behavior – Less interest in play or surroundings.

How Common is CDS?

Studies show that CDS prevalence increases with age:

  • 28% of dogs aged 11-12 years and 68% of dogs aged 15-16 years may experience CDS.

  • 36% of cats aged 11-21 years show cognitive changes, with more severe symptoms appearing after 15 years.


How Vets Diagnose Cognitive Dysfunction in Senior Pets

Because many medical conditions—like arthritis, dental pain, kidney disease, or sensory loss—can mimic cognitive decline, thorough veterinary exams are crucial. Evaluations often include bloodwork, urinalysis, blood pressure checks, and neurological assessments to rule out other causes.

🚨 Noticing behavior changes in your senior pet? Don’t wait—early intervention can slow cognitive decline and improve quality of life. Schedule a vet visit today and reach out to The Empowered Companion for compassionate support.


How to Support Senior Pets with Cognitive Dysfunction

While CDS has no cure, there are many ways to support cognitive function and quality of life:

  • Environmental Enrichment – Keep routines consistent, provide gentle mental stimulation, and ensure easy access to essentials like litter boxes or potty areas. Soft bedding and ramps can also help with mobility.

  • Nutritional Support – Diets rich in antioxidants, omega-3 fatty acids, and MCTs (medium-chain triglycerides) may improve brain function. Supplements like phosphatidylserine and S-adenosylmethionine (SAMe) have shown promising results in supporting memory and mood. Your veterinarian can help you select the best diet for your senior pet based on breed, age, lifestyle, and health status.

  • Pharmaceutical & Holistic Approaches – There are FDA-approved drugs for CDS in dogs, and complementary therapies like acupuncture, massage, and calming pheromones can further ease anxiety. Talk to your veterinarian to decide your pet’s best next steps.

  • Compassion & Connection – Above all, patience and understanding are key. As our companions age, their needs evolve, but their love remains unchanged. Small adjustments can make a profound impact, ensuring they feel safe, comfortable, and cherished every step of the way.


Supporting You, So You Can Support Them—With Love and Care

At The Empowered Companion, we understand the unique needs of aging pets and the deep love you have for them. Our compassionate team can help you recognize early signs of cognitive changes, assist with busy schedules and veterinary visits, and create a supportive environment with mobility-friendly adjustments.

💛 Through calming Reiki sessions, we offer comfort and peace to senior pets, helping them feel safe and at ease. And when the time comes, we provide gentle, heart-centered end-of-life support, honoring their journey with the dignity and love they deserve.

No matter where your companion is in their golden years, we're here to walk alongside you, ensuring they feel cherished every step of the way. 💛


FAQ: Cognitive Dysfunction Syndrome in Pets

What are the first signs of dementia in dogs and cats?
✔️ Disorientation, house soiling, changes in sleep, and increased vocalization are common early signs.

Can cognitive dysfunction be treated?
✔️ While there’s no cure, early intervention with diet, enrichment, and medication can help slow progression.

What’s the life expectancy of a pet with CDS?
✔️ Many pets live for years with CDS if given proper care and environmental adjustments.


References:

  • Management of Dogs and Cats With Cognitive Dysfunction, Today’s Veterinary Practice, Dr. Lynne Seibert, DVM, MS, PhD, DACVB. Source

  • Cornell Richard P. Riney Canine Health Center. Cognitive Dysfunction Syndrome. Cornell University College of Veterinary Medicine. Source


This article is brought to you by The Empowered Companion®, a platform dedicated to enriching family life through mindful and compassionate practices with our animal friends. The Healthy Companion blog articles are penned by Kelsey Bailey, RVT, to offer fact-based, well researched insights to enhance family life through vigilant, appropriate medical care for our animal friends. We aim to empower you to show love and respect by fostering well-being for pets at home and in shelters. 

©2025 The Empowered Companion®




Kelsey Bailey, RVT

My journey with animals began at the age of 5 when I welcomed my first kitten into my life. Since then, I've been enveloped in the company of furry friends, fostering a deep-seated love and understanding of their needs.

In 2015, I embarked on my first job in animal care at a local cat rescue, where my passion for aiding animals flourished. This passion propelled me to pursue a degree in Applied Veterinary Technology, culminating in my becoming a Registered Veterinary Technician.

Since attaining my certification in 2018, I've traversed various roles within the realm of animal care, from aiding in animal rescue missions to providing mobile veterinary services and urgent care. Each experience has enriched my understanding of animal behavior and needs, solidifying my commitment to their well-being.

Now, as a proud member of The Empowered Companion family, I eagerly anticipate the opportunity to forge meaningful connections with each and every companion under my care. My goal is simple yet profound: to ensure that every aspect of their well-being is met while providing a sense of peace and reassurance to their families in their absence.

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