What Is Adult Chronic Sialorrhea?

What Is Adult Chronic Sialorrhea?

  • Sialorrhea is drooling or excessive salivation1

600,000 adult patients are estimated to suffer from chronic sialorrhea in the United States2-7


  • Nerve or muscle condition
  • Problems with brain signaling
  • Muscular problems
  • Excessive secretion of saliva


  • Excessive drooling
  • Skin breakdown around the mouth
  • Infection from the skin breakdown
  • Dehydration or not enough fluids
  • Foul odor

Impact on Daily Living5

Signs, symptoms, and effects of Sialorrhea


  1. Hockstein NG, Samadi DS, Gendron K, Handler SD. Sialorrhea: a management challenge. Am Fam Physician. 2004;69(11):2628-2634. http://www.aafp.org/afp/2004/0601/p2628.html. Accessed November 19, 2020.
  2. Kowal SL, Dall TM, Chakrabarti R, Storm MV, Jain A. The current and projected economic burden of Parkinson’s disease in the United States. Mov Disord. 2013;28(3):311-318.
  3. Kalf JG, de Swart BJ, Borm GF, Bloem BR, Munneke M. Prevalence and definition of drooling in Parkinson’s disease: a systematic review. J Neurol. 2009;256(9):1391-1396.
  4. Prevalence and most common causes of disability among adults – United States, 2005. Centers for Disease Control website. https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5816a2.htm. Accessed November 19, 2020.
  5. Walshe M, Smith M, Pennington L. Interventions for drooling in children with cerebral palsy. Cochrane Database Syst Rev. 2012;11:CD008624.
  6. Tiigimäe-Saar J, Taba P, Tamme T. Does Botulinum neurotoxin type A treatment for sialorrhea change oral health? Clin Oral Investig. 2017;21(3):795-800.
  7. What is ALS? ALS Association website. www.alsa.org/news/public-awareness/als-awareness-month/2016/what-is-als.html. Accessed November 19, 2020.