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Why is my older dog suddenly clingy? Is it age, anxiety, or illness?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | unneutered | 9 years and 3 months old | 7 lbs

Why would my dog be so clingy all of a sudden?

1 Answer

Most Helpful Answer

Laura Johnson VMD

Answered By Laura Johnson VMD

Veterinarian

Published on March 15th, 2018

HI, thanks for using Petco Pet Education Center, formerly Petcoach!

There can be multiple reasons for a dog to suddenly act clingy: fear, separation anxiety, and medical conditions. Medical conditions could be: pain, anal gland issues, fleas, overall nausea from kidney or liver disease, brain tumor or as some dogs age they develop cognitive dysfunction or doggie dementia. If Snicker's behavior persists then I recommend an exam and possibly blood work be done by your Vet.

Sadly his symptoms are non-specific and can mean many different things.

I hope this helps and I wish you and Sage the best!
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