Most likely just a little thing called "pearly penile papules", which are little colorless bumps that most men have on their penis and scrotum. They may not go by that name when on the scrotum but they are normal either way. I have them and most guys do too.
If they itch, burn, bleed, or grow, you need to see a doctor because it's hard to tell what somebody is describing on the computer.

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