Original sentence: A 2013 systematic review found that circumcision did not appear to adversely affect sexual desire, pain with intercourse, premature ejaculation, time until ejaculation, erectile dysfunction or difficulties with orgasm.Another 2013 systematic review found that the highest-quality studies reported no adverse effects of circumcision on sexual function, sensitivity, sensation or satisfaction.Circumcision does not appear to have a negative impact on sexual function.However, the study found that the existing evidence is not very good.The highest quality evidence indicates that circumcision does not decrease the sensitivity of the penis, harm sexual function or reduce sexual satisfaction
Edited sentence: "  Medical literature has noted a link between adult circumcision, loss of sensitivity and impotence." and "Circumcision ablates the most sensitive parts of the penis.A study of sensitivity concluded, "The glans of the circumcised penis is less sensitive to fine touch than the glans of the uncircumcised penis.Advocates of circumcision have claimed that "circumcision does not decrease the sensitivity of the penis, harm sexual function or reduce sexual satisfaction..  That claim was accomplished by narrowly defining harm and sensitivity and has been heavily criticized by researchers.Claims that circumcision does not appear to have a negative impact on sexual function are contested by various studies showing diminished penile sensitivity, less penile gratification and links to impotence.Medical studies have concluded that there is a "decrease in masturbatory pleasure and sexual enjoyment after circumcision" and that it "adversely affects sexual function in many men" possibly due to the loss of nerve endings in the foreskin.One author responded to the sensitivity claim by stating, "[t]his would be roughly akin to stating that neonatal removal of the little finger is not associated with changes in hand sensitivity" and that "to remove [penile] tissue is to reduce penile sensitivity by definition".Some accounts from men who have been circumcised in adulthood: "Stimuli that had previously aroused ecstasy had relatively little effect", "On a scale of 10, the intact penis experiences pleasure that is at least 11 or 12; the circumcised penis is lucky to get to 3", "sight without color ... Only being able to see in black and white" and "I seem to have a relatively unresponsive stick where I once had a sexual organ"