I would let a vet look at it to ease my mind. But be aware that the advice will probably be to neuter him.
One time WD had an imbedded tick in his testicle and the vet asked me if she could just neuter him instead of taking the tick out. "Sure"....like if you hurt your hand, why not amputate the entire arm? NO! Of course not.
Deja, GSD, sable WL, female, born 11 / 2013
Cam, Rough Collie, sable, male, born 8/2015