Pink lump on puppy's belly.

Dr. Marie replied:

Hi Jay...I'll await your pictures. Is the lump itchy at all?



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Dr. Marie replied:

OK, here are the pictures:















There are a few things that this could be. From what I can see in the pictures I think it is unlikely to be anything to be too worried about (especially if he is not bothered by it.)

It's possible that this is some mild "puppy pyoderma". Puppy pyoderma is something that looks like a skin infection but there actually isn't any bacteria involved. It is not itchy and it goes away on its own within a couple of weeks. If it is puppy pyoderma then there may be more bumps that appear.

It could also be the first pustule of the start of a skin infection, but I don't think this is likely.

It could also be an insect bite although at this time of year this wouldn't be that common.

It's very unlikely to be a tumor. I have seen some dogs who have something called a histiocytoma which looks like this, but I have never seen one on the abdomen. They are usually on the ears or head. Even if it is a histiocytoma these go away on their own.

If Max was older I might think that this could be a mast cell tumor, but it is extremely unlikely on such a young dog. Also, mast cell tumors usually look more aggressive - they are usually dark red and often "angry" looking.

If it's not bothering Max I think it's a good idea to just keep an eye on him.

Again, I should mention that a consult online can't take the place of an in person visit so if you are worried you should have your vet take a look!

Dr. Marie.

Dr. Marie replied:

Pyoderma is just another word for a bacterial skin infection. When a dog has pyoderma they start of with small pustules that can indeed look like what you are showing me in the picture. Then, the pustules burst open and you see a little scab and a flaky border around it. Then, there are more pustules that appear as the infection spreads.

If you are seeing more of these red spots then you can take him in to see his vet. They will prescribe some antibiotics and that should take care of the problem.

My guess is though that this won't turn into anything that requires a vet visit.

It's unlikely to be due to his food.

Dr. Marie replied:

You're welcome...it's always good to hear from you!

Dr. Marie replied:

Thanks for the update! "Puppy impetigo" is the same as puppy pyoderma. Nothing to worry about.

Sounds like a good plan!