Hi. Hard to understand what you are describing. Is he neutered? If not, can you feel both the tickets in the scrotum?
Can you be describing a hernia?
yes he is neutered. we had this done in 2011. I am not sure if it is a hernia i have never seen one.
Try doing a Google search for canine hernia photos, that may bring some up for you to see.
This is just hard without seeing it to even guess. I was thinking he possibly had retained testicles as they can go up into the abdominal area. Maybe he was born with an extra set, that I have never heard of.
Trying to think of anatomy here.
Okay, try looking up photos of the male Dog's Bulbus gland. Maybe that is what you are mistaking for lumps