Puppy belly buttons ?
Simon, my GSD pup has a little buldge above his boy parts, it's round (almost the size of a peanut) and probably sticks about about a centimeter. The breeder told me it is where the umbilical cord was attached, so I call it his puppy button.
I don't remember ever seeing this on any other dog I have owned have you ever noticed something like that?
I almost feel as I have been watching him grow that it has grown along with him, when I expected it would get smaller. I am going to try and do some net research on it today because of course now I am getting worried.