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Why is my dog's lip swollen on one side, yet he seems normal?

Updated On September 23rd, 2025

Pet's info: Dog | Basset Hound | Male | neutered | 3 years and 8 months old | 53 lbs

My dogs lip is dry and swollen on one side. He is eating and drinking. Acting normal. Does not like it touched. Gums and rest of mouth not swollen or red.

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2 Answers

Most Helpful Answer

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Answered By Shaneez Wallani, DVM

Veterinarian

Published on February 26th, 2019

Toby is a very handsome man! If the area continues to bother him (if it stays swollen and he doesn't want you touching it) I recommend making an appointment to have him seen by a vet for diagnosis and treatment of the issue. If the swelling spreads elsewhere, he develops hives, or he begins to have any difficulty breathing, have him seen by a vet right away, as this could be a sign of a serious allergic reaction. If you are using plastic food or water bowls I recommend switching to stainless steel or glass and washing them thoroughly every day, as sometimes plastic bowls and the bacteria that can live on them can lead to irritation of the lips/ chin. If you think Toby may have chewed on an electrical wire and that may have caused the lesion on his lip, let your vet know right away, as this can be very painful.

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51Pet Parents found this answer helpful

Other Answers

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    Answered By Anna M., DVM

    Veterinarian

    Published on March 17th, 2020

    Ele could be having a local reaction to a bug bite or sting, or she could have focal swelling from a tooth problem. If the swelling doesn't consistently improve and completely resolve over the next 2-3 days, I recommend having her seen by the vet. If at any point it looks worse, then i'd take her right in to be seen.

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