Petco Text Logo
Petco Pet Logo

  • Two Easy Ways to Start Earning Rewards!

Dog's swollen lymph nodes, belly, legs won't clear. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | neutered | 8 years and 3 months old | 15 lbs

Hi my miniature jack Russell started with swollen lymph nodes a few weeks ago. He had antibiotics but it hasn't cleared up. He's started to get a swollen belly and legs what could this be.

1 Answer

Most Helpful Answer

Image profile

Answered By Maria DVM

Veterinarian

Published on March 25th, 2018

I would recommend talking to your veterinarian about getting an aspirate of Tiny's lymph nodes. My concern when all the peripheral lymph nodes are enlarged this can be lymphoma. If the aspirate is definitive then ideally you would start treatment as soon as possible. The aspirate can tell you if it is lymphoma or reactive from inflammation or infection. Thank you for using Petco Pet Education Center, formerly Petcoach.

Vote icon

1Pet Parents found this answer helpful

Related Questions

Petco Pet Education Center
Health & Wellbeing
Why is my mouse's eye swollen, cloudy, and has pus?
Is your mouse's eye swollen, cloudy, and pussy? Dr. Melanie, a certified vet, discusses severe eye issues like infection or abscess, urging an immediate visit.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
What fish dog food helps dry skin if my dog eats Science Diet?
Is your dog's dry skin a concern? A certified vet offers expert advice on finding the best fish-based dog food alternatives to Science Diet for essential oils.
Updated on February 04, 2026
Petco Pet Education Center
Health & Wellbeing
My rat is losing weight and has breathing issues. What should I do?
Dambo's weight loss, rough breathing, and mucus worry you? A Petco veterinarian addresses these concerning symptoms and recommends urgent professional care.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
Why is my pet's swollen lump with green patches not getting better?
Is your pet's swollen, green-patched infection still bothering them after treatment? A certified veterinarian discusses proper diagnosis methods like biopsy and FNA.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
Why is my 5-week-old chick struggling to walk with splayed legs?
Is your 5-week silkie chick struggling to walk, with splayed legs & curled feet? A board-certified vet explains possible causes like Mareks and what to do next.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
Dog licking paws, fur loss, and jaw wound: Could it be allergies?
Is your Shih-Tzu crossbreed biting his feet, losing fur, or has a wound? A trusted vet explains these classic allergy signs and advises on treatments like Apoquel or medicated shampoo.
Updated on September 23, 2025
image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Book Now

Sponsored