(Sialadenitis; Salivary Gland Infection)


Parotitis is inflammation in one or both of the parotid glands. These are 2 large salivary glands that are inside each cheek over the jaw in front of each ear.Parotitis can be:
  • Acute—inflammation that resolves in a short period of time with or without treatment
  • Chronic—includes persistent inflammation or alternating periods of flare-ups and remission
Parotid Gland
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An inflamed parotid gland has several causes. These vary depending on whether the condition is acute or chronic. The most common causes include:
  • Bacterial infection
  • Mumps
  • Other viral infections
  • Blockage of saliva flow
  • Autoimmune diseases

Risk Factors

This condition is more common in older adults. Other factors that may increase your chance of parotitis include:

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