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Section 74 of the Doctrine and Covenants  gives an explanation of the issue regarding circumcision. Parts of the New Testament state that circumcision is no longer needed because it was part of the Law of Moses which has been fulfilled. Doctrine and Covenants, section 74 therefore provides more clarity on the issue. Circumcision is not needed for the salvation of little children because they are naturally clean and holy, being sanctified through the atonement of Jesus Christ.
Circumcision has become frequently practiced in modern culture, because of assumed benefits to health and cleanliness. The Church of Jesus Christ of Latter-day Saints leaves the decision up to the discretion of the parents and does not make a recommendation for or against the practice.