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My lab mix is limping, lethargic, with bad breath and mouth sores?

Updated On September 23rd, 2025

Pet's info: Dog | Labrador Retriever | Female | spayed | 65 lbs

Hi, I have a 5 yr lab/mix. 3.5 weeks ago she became lethargic, limping, oral ulcers, and bad breath. A biopsy revealed ulcers to be possible of infection or possible chronic irritation. No know trauma/chronic irritation. She has had 2g/day cephelaxin for 3 weeks, 2 weeks of pain meds. Now that she is not on the pain rx she is again limping and lethargic. She was diagnosed with hypothyroid a few months ago. Any diagnosis ideas? Thank you

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on November 6th, 2016

Have Maya rechecked by your veterinarian. She may need xrays of the affected limb as well as her hips and possibly spine. A tick borne disease panel should also be submitted to rule out Lyme disease. Blood work to assess major organ function should be done (or repeated for comparison). A urinalysis will complete the picture and can further assess kidney function. Periodontal disease may be responsible for the bad breath and ulcers, but kidney disease is also a possibility to be considered. A complete dental cleaning is recommended.

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