“Circumcision is a euphemism for genital reduction surgery or genital mutilation, performed by medically-licensed or unqualified practitioners for various reasons. It is important to define it honestly, for that is how the mind interprets it, with or without superimposed denials, explanations and intellectualisations.
Many circumcisions are performed on children, who, by definition are not able to give informed consent of the kind available to adults. They are vulnerable to coercion and manipulation and generally have little say in what happens to their bodies medically & surgically. They are not usually allowed to say no to medical procedures because it is deemed that parents & doctors "know best". However, it is unlikely that any child, asked if they would like a person with a knife to cut off part of their penis, would agree to such an action. This would be a normal psychological reaction to the threat of attack and is overruled at some psychological cost.
When one’s own natural tendency to protect oneself is rendered ineffective, one loses a sense of one’s own power over one’s destiny & survival, and a feeling of helplessness ensues. This occurs in situations of rape, torture and sexual abuse. In a situation where a person feels he or she cannot escape physical attack, the mind will "escape" by a process of "dissociation" – it is as if the mind leaves the body temporarily, so that the body can endure the attack, but the mind does not have to. On returning to the body, the mind may then be subject to unconscious repetitions of the traumatic memories in flashbacks or nightmares. These recurring images may be triggered by any situation which reminds the sufferer of the original traumatic event; a child who has been subjected to a painful surgical procedure in hospital may develop a phobia of hospitals or doctors or people in white coats. The child, or later the adult he grows into, may sweat, have palpitations, feel breathless, nauseated, panicky or dizzy at the thought of the trauma situation and try to avoid it happening again. This may lead to difficulty when medical attention is genuinely needed for a subsequent illness.”
Full article here: http://www.norm-uk.org/circumcision_psychological_effects.html