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The early complications of circumcision are [[bleeding]], [[pain]], inadequate [[skin]] removal, and surgical site [[infection]], but they usually tend to be minor. Of these, bleeding is the most common complication of circumcision. Bleeding may occur along the [[skin]] edges between sutures or from a discrete blood vessel, most commonly at the [[frenulum]].<ref>{{REFjournal

When circumcision techniques last several minutes, children often go into a freeze, which was previously misinterpreted as falling asleep peacefully and which led to the belief that babies felt no [[pain]]. Measurements in such cases resulted in an usually 3 to 4 times increased cortisol value, which corresponds to a severe [[shock]] state.<ref>{{REFjournal

We owe the perception of [[pain]] to so-called nociceptors, free nerve endings that are excited when the body is injured or damaged. These specialized nerve cells are distributed all over the body; they send their signals via the spinal cord to the brain, where the excitation is then processed and interpreted as [[pain]]. The number of nociceptors exceeds that of all other receptors and their reporting system is largely independent of other sensory channels such as the sensation of warmth or touch. This shows how central the perception of pain is for the organism.<ref>{{REFweb