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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Leukonychia ： ウィキペディア英語版 Leukonychia Leukonychia (or leuconychia), also known as white nails or milk spots,〔James, William; Berger, Timothy; Elston, Dirk (2005). ''Andrews' Diseases of the Skin: Clinical Dermatology''. (10th ed.). Saunders. Page 789. ISBN 0-7216-2921-0.〕 is a medical term for white discoloration appearing on nails.〔Freedberg, et al. (2003). ''Fitzpatrick's Dermatology in General Medicine''. (6th ed.). McGraw-Hill. ISBN 0-07-138076-0.〕 It is derived from the Greek words ''leuko'' ("white") and ''onux'' ("nail"). The most common cause is injury to the base of the nail (the matrix) where the nail is formed. It is harmless and most commonly caused by minor injuries, such as nail biting, that occur while the nail is growing. Some say leukonychia is a sign of excess or deficiency of calcium, zinc, or other vitamins in the diet,〔http://www.md-health.com/White-Spots-On-Nails.html〕 while others say it isn't,〔http://www.drweil.com/drw/u/QAA350576/white-spots-on-fingernails.html〕 and some also say that it could be due to zinc deficiency, but not calcium deficiency.〔http://www.livestrong.com/article/517202-does-the-white-on-your-fingernails-mean-that-you-dont-have-enough-calcium-in-your-body/〕 It is more commonly found on fingernails than toenails. There is no effective treatment for leukonychia. However, the white marks and spots gradually disappear as the nail grows outward from the matrix with the nail plate. ==Types== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Leukonychia」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.