There is evidence that circumcision creates permanent brain damage. A recent study, where a circumcision was performed on an infant in a hospital MRI chamber, showed the brain after circumcision never returned to its baseline configuration. The infant brain was permanently changed.
In certain religions, circumcision is a sign of faith or obedience to God and the Bible. According to scholars, circumcision as described in the Bible was nowhere near as traumatic or invasive as it is today (Winter, 2011). Biblical circumcision removed significantly less skin, and was proof that the family and the individual man agreed to follow the rules put forth in the Old Testament. In the New Testament, the Bible says that circumcision cuts a man off from God, and that Jesus sacrificed himself so we did not have to shed our blood in sacrifice to Him (Torrey, 2012; Bible, Galatians 5: 3-4, Ephesians 2:15). This includes infant circumcision, which is vastly different from a Biblical circumcision where only the tip of the skin was cut, typically when an infant was eight days old.
Even if it is painful, the baby won't remember it.Reality check: The body is a historical repository and remembers everything. The pain of circumcision causes a rewiring of the baby's brain so that he is more sensitive to pain later (Taddio 1997, Anand 2000). Circumcision also can cause post-traumatic stress disorder (PTSD), depression, anger, low self-esteem and problems with intimacy.