it is pretty normal so long as the discrepancy is not way different than the other, then it's perfectly fine - much like breasts for women (one's a bit bigger than other)

ok thanks a ton. i'm very relieved

its normal
my left boob is bigger than my right boob

ok thanks for the reassurance. i guess even if i did have cancer, i would eventually feel lumps?

i dont think you have cancer hun
but you could look up testicular cancer to make sure and see the symptoms of it

well its just one of the symptoms is one testicle being harder than the other. im not so much concerned about the size of them, but how the right one is harder then the left one. i don't know, maybe because its bigger it just seems hard