hard testicles??

[16yo]

same

I'm 16 years old and for the past 2 years or so (since I started thinking about it) I have noticed that one of my testicles is firmer than the other. Now when I check they are both very firm and can hardly be 'squished' at all. Is this just my balls growing due to puberty and just how they are or is it likely that there is something wrong with them?

[Scott]

Is this something new, or have they always seemed this way? Do they both feel the same, or does one feel harder than the other?

[foxconn]

my testicles feel hard when i press them. they dont feel soft or anything. is their something wrong?