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Hypersalivation (also called ptyalism〔(thefreedictionary.com > ptyalism ) Citing: *Dorland's Medical Dictionary for Health Consumers. 2007 *Mosby's Medical Dictionary, 8th edition. 2009 *Saunders Comprehensive Veterinary Dictionary, 3 ed. 2007〕 or sialorrhea〔 (thefreedictionary.com > sialorrhea ) Citing: *The American Heritage Dictionary of the English Language, Fourth Edition, Updated in 2009.〕) is excessive production of saliva. It has also been defined as increased amount of saliva in the mouth, which may also be caused by decreased clearance of saliva.〔(Medscape > Hypersalivation ) By Erica Brownfield. Posted: 05/19/2004〕 Hypersalivation can contribute to drooling if there is an inability to keep the mouth closed or in difficulty in swallowing the excess saliva (dysphagia). Hypersalivation also often precedes emesis (vomiting), where it accompanies nausea (a feeling of needing to vomit). ==Causes== 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「hypersalivation」の詳細全文を読む スポンサード リンク
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