Why is my older dog suddenly aggressive? Is it a medical issue?

Question

My dog's behavior has been changing over the last year. Now attacking my other dog. Both are rescues about 9 and 11years old. Is it possible he has had some sort of stroke? Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 15 lbs

Jennifer Summerfield, DVM CPDT-KA · Accepted Answer

I'm sorry to hear that you're having this problem! It's unusual for behavior issues like this to develop out of nowhere this late in life, so yes - it's certainly possible that he may have had a stroke, or some other neurologic problem such as a brain tumor. Certain systemic illnesses like hypothryoidism, Cushing's disease, or pain from arthritis or other problems can also cause behavior changes and increased aggression in older dogs. I would recommend taking Rio to the vet for an exam to discuss this problem when you are able to. Your veterinarian may suggest blood work, x-rays, or other testing to help check for these problems. Many of them are very treatable once a diagnosis is made, so there's a good chance that your vet may be able to help.

Why is my older dog suddenly aggressive? Is it a medical issue?

Most Helpful Answer

Related Questions

What fish dog food helps dry skin if my dog eats Science Diet?

Why is my new pet biting? Is she stressed or scared in her new home?

How to keep a pet mom and her newborn babies warm and calm?

My hamster is suddenly bloated, angry, and biting. What should I do?

My sick small pet is breathing mouth open. Did I drown her feeding?

Why is my degu acting strange, lying flat, and barking at night?

Share