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Why does my puppy have sudden pus bumps on his head and no energy?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | 2 months and 16 days old | 5 lbs

Hello I just got a new puppy and he has a few bumps that are on his head that seem to be filled with puss. He does not have a lot of energy today and the numbs appeared suddenly

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1 Answer

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Answered By Vanessa Yeager DVM MPH

Veterinarian

Published on September 17th, 2017

Hi and thank you for your post on Petco Pet Education Center, formerly Petcoach. It is not unusual for puppies to develop a bacterial infection of the skin. The pustules can appear suddenly but is often times self-limiting (meaning it will go away on it's own). This may be what is going on with Hank. If these bumps do not go away or get better in the next week, I would see your veterinarian. I hope this helps and thank you for using Petco Pet Education Center, formerly Petcoach!

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