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What diseases and health conditions can cause too much saliva?

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Diseases and health conditions that can cause too much saliva include:

  • Amyotrophic lateral sclerosis (ALS), also called Lou Gehrig's disease
  • Bell's palsy
  • Cerebral palsy
  • Gastroesophageal reflux disease (GERD)
  • Enlarged tongue (macroglossia)
  • Mental retardation
  • Parkinson's disease
  • Poisoning
  • Pregnancy (usually seen in those with extreme nausea and vomiting)
  • Rabies
  • Stroke

From: Saliva and Your Mouth WebMD Medical Reference

SOURCES:

American Dental Association: "Artificial Saliva," "Saliva," "A Primer on Salivary Diagnostics."

American Academy of Otolaryngology: "Salivary Glands."

ALS Association: "Managing Excessive Saliva."

Reviewed by Michael Friedman on October 10, 2019

SOURCES:

American Dental Association: "Artificial Saliva," "Saliva," "A Primer on Salivary Diagnostics."

American Academy of Otolaryngology: "Salivary Glands."

ALS Association: "Managing Excessive Saliva."

Reviewed by Michael Friedman on October 10, 2019

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What medications can cause too much saliva?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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