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Why is my dog losing weight and experiencing hair loss or skin issues?

Updated On September 23rd, 2025

Pet's info: Dog | German Shepherd | Male | neutered | 2 years and 11 months old | 35 lbs

The pet has developed some skin problems and has lost weight also

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1 Answer

Most Helpful Answer

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Answered By Ann Dion, DVM

Veterinarian

Published on December 2nd, 2018

Hello and welcome to Petco Pet Education Center, formerly Petcoach. Weight loss can be a sign of intestinal worms, organ dysfunction or disease (pancreatic insufficiency, liver shunts, kidney disease, liver inflammation/infection, etc.), food allergies or poor diet, and many other conditions. Hair loss can be due to parasites (mange, fleas, etc.), hypothyroidism, allergies (food or environment), immune diseases, etc. Given that Kalu is 2 years old, I would start by getting him dewormed and also get a product that treats for fleas, ticks and mange. See if his problems resolve. If they do not, then see your vet about testing. Best of luck with Kalu!

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