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Why is my dog losing weight, tired, and has growing neck lumps?

Updated On September 23rd, 2025

Pet's info: Dog | American Staffordshire Terrier | Female | spayed | 63 lbs

My dog was adopted so we don't know her exact age, we've had her for 4 years and she's started getting white around her muzzle. She is normally not very active, we go on walks every day but lately her endurance has gone way down and in the last few days we've noticed rapid weight loss. She's still eating but less and she doesn't seem to be in any pain but there are nodules on her throat similar to where I assume lymph nodes would be, they seem to be getting bigger in the last week.

2 Answers

Most Helpful Answer

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Answered By Shaneez Wallani, DVM

Veterinarian

Published on April 10th, 2019

I recommend you make an appointment to have Maya seen by your vet as soon as you can based on the information you provided. Lymph nodes can become enlarged for a number of reasons, including infection, inflammation, trauma, or, unfortunately, certain types of cancers. There are also salivary glands near the neck that can become enlarged due to dental disease, infection, inflammation, or even stones in the salivary glands. Your vet will be able to help you determine what the areas you are feeling are and help devise a treatment plan accordingly. Best of luck to you both!

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    Answered By Ana M, DVM

    Veterinarian

    Published on June 11th, 2019

    Thank you for submitting your question regarding Rosie. I recommend that she sees a veterinarian. Her symptoms are worrisome, especially the knots in her neck. Depending in their location, these could be enlarged lymph nodes. This is a very serious problem if this occurs. If this is not the case, her veterinarian will thoroughly examine her and determine what else may be wrong. Then treatment can be started to hopefully make her feel better. I hope this information helps!

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