“Many people think circumcision removes nothing more than a little extra skin. The truth is that circumcision removes several critical components of male sexual anatomy. This list enumerates everything currently known to be lost when one is circumcised. Included are notes on whether these losses can or cannot be amended by foreskin restoration.
The information contained in this list may be upsetting to some, but we feel it is important and necessary for those considering restoration to understand as fully as possible the anatomy/biology/neurology of what has been removed and/or destroyed.”
Continued here: http://www.norm.org/lost.html