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Drooling (also known as salivation, driveling, dribbling, slobbering, or, in a medical context, sialorrhea) is the flow of saliva outside the mouth. Drooling can be caused by excess production of saliva, inability to retain saliva within the mouth (incontinence of saliva), or problems with swallowing (dysphagia or odynophagia). Frequent and harmless cases are a numbed mouth from either Orajel, or when going to the dentist office. Isolated drooling in healthy infants and toddlers is normal and is unlikely to be a sign of either disease or complications. It may be associated with teething. Drooling in infants and young children may be exacerbated by upper respiratory infections and nasal allergies. Some people with drooling problems are at increased risk of inhaling saliva, food, or fluids into the lungs, mainly if drooling is secondary to a neurological problem. However, if the body's normal reflex mechanisms (such as gagging and coughing) are not impaired, this is not life-threatening. == Causes == Drooling or sialorrhea can happen in sleep. It is often the result of open-mouth posture from CNS depressants intake or sleeping on one's side. In sleep, saliva may not build at the back of the throat, triggering the normal swallow reflex, thus allowing for the condition. Other causes include: * Stroke and other neurological pathologies * Intellectual disability * Adenoid * Cerebral palsy〔(【引用サイトリンク】title=The Relationship Between Oral Sensation and Drooling in Persons With Cerebral Palsy )〕 * Amyotrophic lateral sclerosis * Tumors of the upper aerodigestive tract * Parkinson's disease〔(【引用サイトリンク】title=Prevalence and definition of drooling in Parkinson’s disease: a systematic review )〕 * Rabies * Mercury poisoning Drooling associated with fever or trouble swallowing may be a sign of an infectious disease including: * Retropharyngeal abscess * Peritonsillar abscess * Tonsilitis * Mononucleosis * Strep throat * Exercise, especially cardiovascular activities, can cause a severe amount of saliva build up in the mouth, making it difficult to breathe. A sudden onset of drooling may indicate poisoning (especially by pesticides or mercury) or reaction to snake or insect venom. Some medications can cause drooling as well such as the pain relief medication Orajel, by mucosa numbness. Some neurological problems also cause drooling. Excess Capsaicin can cause drooling as well, an example being the ingestion of particularly high Scoville Unit chili peppers. 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「Drooling」の詳細全文を読む スポンサード リンク
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