I had a inguinal hernia repaired four years ago0n the left side of my scrotum. Two years later the other side has popped up...a hard lump, but not painful, I can now feel a round smooth nball-like lump moving around, It is not in the scrotum, near near it, I hope it s my hernia and not testicular cancer.I am 71 yrs. old, and in good shape.