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using <ref name="taylor1996"/>
* An unavoidable late effect of any circumcision is the permanent loss of sexual sensitivity. This is partly due to the removal of sensory tissue. The [[foreskin]] contains very many nerve endings and touch receptors, which account for the major part of male sexual sensation. If the [[foreskin]] is removed, they can no longer provide sexual stimulation. It is also partly due to the fact that the surface of the [[Glans penis|glans]] reacts to the missing protection from friction and drying out by developing a callus layer. This reduces the sensitivity of the remaining nerves in the [[Glans penis|glans]] gradually over the years. The study conducted by Sorrells et al.<ref>{{Sorrells etal 2007}}</ref> found a significant reduction of sensitivity to touch for circumcised compared to intact [[penis]]es in adult males. Other studies revealed that circumcised men use condoms significantly less often than intact men, since they further limit the sexual sensitivity (see above).
* Painful tension can occur when there is too little reserve [[skin]] left to support a full [[erection]]<ref>{{REFjournal |lastname=Taylor |init=JR |last2=Lockwood |init2=AP |last3=Taylor |init3=AJ |title=The prepuce: <q>Specialized [[mucosa]] of the [[penis]] and its loss to circumcision</q> |journal=British Journal of Urology |date=1996 |volume=77 |issue= |pages=291-5 |url= |accessdate=}}<"taylor1996"/ref>. This risk is partly dependent on the anatomy of the [[penis]]. While some [[penis]]es already have the majority of their full size when flaccid ([[Flesh Penis]], or "[[shower]]"), others are rather short when flaccid and double or more their size during an [[erection]] ([[Blood Penis]], or "[[grower]]"). Especially in children's circumcision, where the [[penis]] is not yet fully developed, the amount of reserve [[skin]] needed in adulthood cannot be estimated.
* Erectile dysfunction: Both the damage inflicted to the blood vessels in the [[foreskin]] and the reduced sexual sensitivity can be causes for reduced erectile function with advancing age.<ref>{{REFjournal