As your dog grows older, their needs change — and so does their health. Gray muzzles, slower mornings and new diagnoses can feel overwhelming, but knowing what to look out for makes all the difference.
Here’s a guide to caring for a senior dog, the most common signs your pet is in pain and how those conditions are typically managed.
When Is a Dog Considered Senior?
Most dogs are considered seniors starting around age 7, though this varies by size and breed. Larger breeds like Great Danes tend to age faster and may reach their senior years as early as 5 or 6, while smaller breeds often don’t hit that stage until 10 or 11.
Twice-yearly veterinary visits with senior panel bloodwork are recommended to help catch age-related issues early.
What Are the Most Common Senior Dog Health Issues?
Senior dogs commonly experience arthritis, dental disease, cognitive changes and heart disease, among other conditions.
Here’s a closer look at the 10 most common health issues and how they’re typically managed.
1. Arthritis
Arthritis is one of the most prevalent health issues in senior dogs. As cartilage breaks down over time, joints become inflamed and painful, making everyday movement more difficult.
Dog arthritis treatment options your veterinarian may recommend include:
- Joint supplements like Duralactin® and chondroitin
- Prescription NSAIDs like firocoxib chewable tablets
- Low-impact exercise, such as swimming
- Weight management to reduce stress on joints
2. Urinary Incontinence
If your housebroken dog is having accidents, it may be a sign of canine urinary incontinence. Urinary incontinence is particularly common in aging female dogs due to weakened urethral sphincter muscles.
Your veterinarian may prescribe a long-acting medication like phenylpropanolamine hydrochloride extended-release tablets (commonly known as Proin ER™) to address urinary incontinence.
Proin ER™ features patented extended-release technology that allows for one-daily dosing, rather than requiring pet parents to give multiple tablets per day like with Proin®. Compared to Proin®, Proin ER™ has a better efficacy and safety profile. Plus, there’s no “washout” period when transitioning from Proin® to Proin ER™. As with all prescription medications, a veterinarian must evaluate and prescribe before use.
3. Dental Disease
Dental disease is very common in older dogs and can lead to tooth loss, gum disease, bad breath and discomfort. Regular veterinary dental check-ups, professional cleanings and at-home brushing can help prevent or slow the progression of dental problems. If your dog’s oral health continues to decline, your veterinarian may recommend removing damaged teeth or prescribing antibiotics and pain medication.
4. Heart Disease
Heart disease occurs when your dog’s heart muscles, valves or arteries begin to wear down with age. Signs may include coughing, lethargy, weight loss and difficulty breathing.
Depending on your dog’s specific condition, your veterinarian may discuss lifestyle adjustments, surgery or prescription medications such as Amlodipine or Vetmedin® (generic: pimobendan) as part of a treatment plan.
5. Cancer
Cancer is unfortunately common in senior dogs, and early detection matters. Watch for unusual lumps, unexpected weight loss, changes in appetite or mobility issues.
Treatment options your veterinarian may discuss include surgery, radiation therapy, chemotherapy or palliative care focused on comfort and quality of life. For dogs with cancer, some veterinarians may also consider immunosuppressants like chlorambucil as part of a comprehensive care plan.
6. Diabetes
Diabetes in dogs occurs when the body can’t properly regulate insulin and blood sugar levels. Common signs include frequent urination, excessive thirst and unexplained weight loss.
Depending on the type of diabetes, your veterinarian may recommend insulin therapy, dietary changes and regular low-impact exercise.
7. Cognitive Dysfunction Syndrome (CDS)
Cognitive Dysfunction Syndrome (CDS), sometimes called “doggy dementia,” can cause disorientation, confusion and behavioral changes in senior dogs. There’s no cure, but management typically involves:
- Cognitive enrichment and mental stimulation
- Keeping a consistent daily routine
- Minimizing environmental stress and noise
- Medications such as fluoxetine, as prescribed by your veterinarian
8. Liver Disease
The liver plays a vital role in digestion and filtering waste from the body. As dogs age, the liver can become more vulnerable to conditions like hepatitis, tumors or cirrhosis. Signs may include vomiting, jaundice, loss of appetite and abdominal swelling.
Your veterinarian may recommend medications like ursodiol along with dietary adjustments and ongoing monitoring.
9. Hypothyroidism
Hypothyroidism occurs when the thyroid gland doesn’t produce enough hormones, which affects your dog’s metabolic function. Common signs include weight gain, lethargy, hair loss and cold intolerance.
Your veterinarian may prescribe a thyroid hormone medication like levothyroxine to help manage the condition.
10. Gastrointestinal Disease
Senior dogs experience digestive issues (e.g., inflammatory bowel disease (IBD), vomiting, diarrhea and constipation) more frequently than younger dogs. Treatment may involve hydration support, dietary adjustments or prescription medications like budesonide as directed by your veterinarian.
What Can You Give a Senior Dog for Pain?
Always consult your veterinarian before giving your dog anything for pain. Only your veterinarian can diagnose the cause of your dog’s discomfort and prescribe an appropriate treatment plan.
Prescription NSAIDs designed for dogs (e.g., carprofen, meloxicam, Galliprant®) are among the most commonly prescribed options for age-related pain like arthritis. Supplements like omega-3 fatty acids, glucosamine and chondroitin may also support joint health as part of a broader care plan. But again, check with your veterinarian before starting any supplement.
Never give your dog human pain relievers like ibuprofen, naproxen or acetaminophen. These medications can cause serious harm to dogs, including kidney failure, stomach bleeding and liver damage.
For senior dogs with complex needs, custom compounded medications from a licensed veterinary pharmacy like Mixlab can make administering the right dose in the right form much simpler, whether that’s a flavored chew, liquid or transdermal gel. A veterinarian must prescribe all compounded medications.
Talk to a Veterinarian About Whether a Compounded Medication Could Simplify Your Senior Dog’s Care
Mixlab partners with veterinarians nationwide to make the process as easy as possible. Our mission is to provide exceptional care for pets and those who care for them with compounded and commercial medications, including custom formulations designed to make dosing easier for older dogs with complex needs.
Talk to your veterinarian about using Mixlab for your dog’s medications.
Frequently Asked Questions About Senior Dog Care
What age is a dog considered senior?
Most dogs are considered seniors around age 7, though it varies by size and breed. Larger breeds tend to age more quickly and may enter their senior years closer to 5 or 6. Your veterinarian can advise on when to begin a senior health protocol for your specific dog.
What are the signs that my dog is in pain?
Signs of pain in older dogs can include limping, stiffness, reluctance to move, whimpering, changes in appetite and behavioral shifts like irritability or withdrawal. Because dogs often try to hide discomfort, regular veterinary check-ups are important for early detection.
What can I give my dog for pain?
Only give your dog pain medications that have been prescribed or explicitly approved by your veterinarian. Common options may include prescription NSAIDs or joint supplements. Never administer human pain relievers, as they can be dangerous or fatal for dogs.
How often should my senior dog see a veterinarian?
Most veterinarians recommend twice-yearly wellness visits for senior dogs, including bloodwork to monitor organ function and catch changes early. More frequent visits may be needed if your dog is managing an ongoing condition.
Can cognitive dysfunction syndrome in dogs be treated?
CDS cannot be cured, but it can be managed. Your veterinarian may recommend environmental enrichment, routine adjustments and in some cases prescription medication to help support your dog's quality of life.
What supplements are commonly recommended for senior dogs?
Omega-3 fatty acids, glucosamine and chondroitin are commonly used to support joint health in aging dogs. Senior-specific dog food formulas may also be recommended by your veterinarian. Always check with your veterinarian before adding any supplement to your dog's routine.
When should I consider palliative care for my dog?
Palliative care focuses on comfort and quality of life rather than curative treatment. If your senior dog has a serious illness where curative options are limited, your veterinarian can help you understand what palliative care looks like and whether it's the right path forward.
