My 6 Day Old Grandson Just Had His Circumcision Done.

My 6 day old grandson just had his circumcision done. The doctor came out said everything went well but they saw a small cyst on the end of his penis and something about thicker veins. Told her to take him to his pediatrician. Is this anything to worry about? He has an appt scheduled for Tuesday. Is it okay to wait till then? My daughter is very upset.