Petco Text Logo
Petco Pet Logo
  • Two Easy Ways to Start Earning Rewards!

    rewards header
    Become a member today!
    Members-only pricing and offers, personalized care notifications, Vital Care points back on every purchase and more!
    Petco Pay LogoBecome a credit card member today!

    Earn 2X Pals Rewards points at Petco
    when you use Petco Pay!

    APPLY NOW
    Learn More About Petco Pay Benefits

Why is my dog weak, losing weight, not eating, and peeing more?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 2 years and 5 months old | 22 lbs

Hi I want to know what's going on with my sister's dog. He has not been able to stand for a long time and can't walk for longer distances. He also won't eat his food and treats as much as before and sometimes won't totally eat. The amount of his urine is way more than before and takes more time than before and is having difficulty in passing his poop. He also has eye discharges in his left eye from time to time. And his weight has gone down to 22lb from 33lb.

1 Answer

Most Helpful Answer

Laura Johnson VMD

Answered By Laura Johnson VMD

Veterinarian

Published on September 4th, 2018

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

Chopper looks very sick. I would worry about kidney or liver failure or even cancer. Sadly cancer, specifically lymphoma, is non-discriminatory regarding age. Lymphoma, liver and kidney disease all cause weight loss, increased thirst and urination, weakness and a poor appetite.

Chopper needs to see a Veterinarian. I wish you all the best!
Vote Icon1Pet Parents found this answer helpful

Smart Picks for Smart Questions

Have A Vet Question?

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

Share

Styled arrow button