Neutering complications?

[Kpage]

We just adopted a 13 week old puppy through a rescue group, he was already neutered at a very young age of 10 weeks, and we are concerned that he may have complications from his neutering. A week ago we noticed a small purple bump on the incision site that didn't seem to really bother him, but now a week later it has trippled in size and is dark purple. It was bleeding and pussing the other night, so I cleaned it with warm water and a paper towel. This bump feels hard to the touch as if maybe a testcile is still in place or there is a deep infection. This does not seem to be bothering the dog, he still pees normally and when we touch the questionable bump he does not seem to be in any pain.
Please advise as to whether this may be an infection from the incision or perhaps a hernia or complication from being neutered so young. Would an antibiotic clear it up, because the adoption center that we got him from said that they can prescribe some antibiotic?

Thanks so much.

[Mcook1298]

I have a 6 month old Rottweiler, he was neutered a week ago, I just noticed along his penis line a lump that feels like a testacle, it doesn't hurt him and he acts fine and pees ok

[Aleda M Cheng, D.V.M., C.V.A]

That is a very interesting mix.  Please post photos.

It could definitely be due to the neutering.  It could be an abscess, an infection or a reaction to the suture material.  Try the antibiotics first.  It they are ineffective, you will have to take your puppy to the vet to examine the bump.