My 6 month old also has a minor hydrocele going on... his is a result of the opening that your newts drop through during development didn't close all the way before he was born. The short of it, he has the nuts of a grown man. Seriously, the dude needs a nut-bra to support his giant juevos. The sad part of it is that because his boys are so big, his peanor has a hard time remaining an "outie."
Best part is, he's already had his junk handled by tons of women. Including, and I sh!t you not, an ultrasound tech named Candy. I had to give him props for that.
He's likely going to need to have surgery in the next year or so... so don't fret OP, if my baby boy can roll with it, you can too.