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Why is my dog itching, losing hair, and has a large lump?

Updated On September 23rd, 2025

Pet's info: Dog | Pug | Female | spayed | 25 lbs

I have a 8 year old black pug he has been itching a lot and now is bald from knecl down belly. I just found a 6 inch width hard mass or something under skin over left arm by top collar bone I'm very concerned

1 Answer

Most Helpful Answer

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Answered By Rodrigo Roca, DVM

Veterinarian

Published on January 16th, 2020

Hello, sorry to hear about Zachary. It dogs that have severe itchiness and develops hair loss due to this, they can also develop thickening and hardening of the skin as a result of the underlying disease process. This could be associated with some for of allergy or skin infection. Other rare causes include cutaneous lymphoma which can also cause severe itchiness. All of these may be diagnosed with a physical examination, allergy testing, skin cytologies, and even skin biopsies. Please contact your veterinarian and have Zachary evaluated soon so that he may be further diagnosed and treated as necessary. Hope this helps and best of luck.

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