christmas is a christian holiday held on december 25 which celebrates the birth of jesus christ. eastern orthodox churches, which use the julian calendar to determine feast days, celebrate on january 7 by the gregorian calendar. both dates are merely traditional and neither is thought to be the actual birthdate of jesus. christ's birth, or nativity, is said to fulfill old testament prophecies concerning the coming of a messiah, or savior. the word christmas is derived middle english christemasse and from old english cristes m?sse.[1] it is a contraction meaning "christ's mass". the name of the holiday is often shortened to xmas because roman letter "x" resembles the greek letter χ (chi), an abbreviation for christ (χριστ??). in western countries, christmas has become the most economically significant holiday of the year. the popularity of christmas can be traced in part to its status as a winter festival. many cultures have their most important holiday in winter because there is less agricultural work to do at this time. examples of winter festivals that are believed by some to have influenced christmas include the pre-christian festivals of yule and saturnalia. in western culture, the holiday is characterized by the exchange of gifts among friends and family members, some of the gifts being attributed to santa claus (also known as father christmas, saint nicholas, and father frost). however, various local and regional christmas traditions are still practiced, despite the widespread influence of american, british and australian christmas motifs disseminated by film, popular literature, television, and other media.
一般来说,乳腺增生病约占全部乳腺疾的75%以上,是最常见的一类乳腺疾病,发生于青春期开始以后的任何年龄的妇女,而临床表现以乳腺肿块,乳腺疼痛为基本表现,大约80%的患者有乳房疼痛的症状,多双侧,也可单侧疼痛,疼痛性质分为胀痛、刺痛、窜痛、隐痛或触痛的情况。
主任医师 广州伊丽莎白妇产医院
一般不需要治疗,但要留意宝宝的膀胱问题,有的孩子会有膀胱输尿管反流现象,引起小便发言。我们以前发表过一篇文章,发现隐性骶骨裂也和便秘有关,应注意饮食。参考文献:Constipation in children is associated with significantly increased incidence of spina bifida occulta Zheng-Wei Yuan, Wei Cheng,Ana Hou, Wei Wang, Shucheng Zhang, Dan Liu, Fei Gao, Hui Li, Weilin Wang Clin Gastroenterol Hepatol (IF: 5.7). 2008 Dec;6(12):1348-53.
教授 北京和睦家医院
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