Linda,
There is a very good article in the current issue of Mothering, "Where is
My Foreskin?" by Paul M. Fleiss, MD. I encourage your son to read this
article.
On a personal note, my father, who was born in Italy, was not circumcised
as a baby. At the age of 28, he decided to get circumcised. My mother
told me that my father has regretted doing this ever since. I lack the
courage to ask him about this---maybe one day.
Encourage your son to read everything possible, so he can make an
informed decision----and not regret what he has done.
Aloha,
Gloria Thai LLLLeader Hawai'i