Circumcision is a form of perinatal (birth) trauma. Cansever tested boys before and after circumcision and found that the trauma causes severe disturbance of normal function. Taddio and others have documented behavioral changes at six months of age, suggestive of PTSD in circumcised boys. Yilmaz et al. have demonstrated PTSD in boys in the phallic period who are undergoing circumcision for phimosis. Rhinehart has documented posttraumatic stress disorder resulting from the perinatal trauma of circumcision in middle-aged males. substantial evidence that perinatal trauma and/or deprivation of pleasure contribute to later aggressive, violent, and/or suicidal behaviour. Anand and Scalzo suggest that early trauma predisposes to altered pain sensitivity, stress disorders, ADD/hyperactivity, and self-destructive disorders. Van der Kolk identified a compulsion in traumatized persons to repeat the trauma. Goldman reports that the performance of circumcision by a circumcised male doctor may be a reenactment of one's own circumcision trauma.
Persons who have lost body parts must grieve their loss. The first stage of grief is denial of the loss. Fitzgerald and Parkes state that "Anything that seriously impairs sensory or cognitive function is bound to have profound psychological effects, not only on the person who is affected but also on family, friends, workmates, and caregivers." The thought of permanent loss of sensory function is so painful that persons deny their loss in order to avoid facing the painful feelings. Denial of loss causes a flight from reality. Parkes et al. state that persons in denial may minimize their loss. Circumcision causes the loss of a body part and all of its functions including a drastic loss of erogenous sensory function, so denial of loss is not uncommon in circumcised males.
Goldman states that some circumcised male medical doctors misuse the medical literature to support, rationalize, and justify their own loss; and to defend the practice of circumcision.