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| Chadwick sign ： ウィキペディア英語版 |
Chadwick's sign
Chadwick's sign is a bluish discoloration of the cervix, vagina, and labia resulting from increased blood flow. It can be observed as early as 6 to 8 weeks after conception,〔Note: In some it can be seen earlier.
(pregnancytoday.com )〕 and its presence is an early sign of pregnancy.
These color changes were discovered in approximately 1836 by French doctor Étienne Joseph Jacquemin (1796-1872), and are named after James Read Chadwick, who drew attention to it in a paper read before the American Gynecological Society in 1886 and published in the following year, wherein he credited Jacquemin for their discovery.〔
==See also==
* Linea nigra
* Goodell's sign
* Hegar's sign
* Ladin's sign
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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