What are the causes of parotitis?

Updated: May 04, 2020
  • Author: Jerry W Templer, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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See the list below:

  • In the vast majority of instances, risk factors are unknown.

  • Occasionally, drugs such as iodides or guanethidine cause transient swelling of the gland.

  • Autoimmune disease causes most cases of chronic parotitis.

  • Recurring bacterial parotitis may be caused by stone formation or stenosis of the duct, but this also occurs in a minority of cases of chronic parotitis.

  • HIV may cause a type of indolent parotitis that suggests an autoimmune process.

  • Dehydration with stasis of salivary flow may cause of acute parotitis. Drugs with an atropine effect (eg, antihistamines) may precipitate parotitis on rare occasions.

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