If a stone remains lodged for too long, the stagnant saliva becomes a breeding ground for bacteria. This leads to , a bacterial infection of the gland.
| Modality | Sensitivity for stones | Best for | |----------|----------------------|----------| | | >90% for stones >2 mm | First-line; no radiation; detects ductal dilation. | | Plain radiography | Poor (only 20-40% visible) | Only for radiopaque calcium stones. | | CT without contrast | ~90% | Detects small or radiolucent stones; better for deep lobe. | | Sialography | High for stenosis | Invasive but defines ductal anatomy; not during acute infection. | | MRI / MR sialography | Moderate | Noninvasive ductal visualization, useful in recurrent idiopathic cases. |
Signs of infection include:
Though less common, abnormal cell growths can compress the duct. Key Symptoms to Watch For Parotid Duct Obstruction | Cedars-Sinai
This is for informational purposes only. For medical advice or diagnosis, consult a professional. AI responses may include mistakes. Learn more parotid gland blockage
Understanding Parotid Gland Blockage: Causes, Symptoms, and Relief The parotid glands are your largest salivary glands, located just in front of and below each ear. They produce saliva that enters your mouth through the parotid duct (Stensen’s duct). When this duct is obstructed, saliva backs up into the gland, leading to pain and swelling. Common Causes of Blockage Several factors can interfere with normal saliva flow: Salivary Stones (Sialolithiasis): The most common cause, where small calcium-rich stones form and lodge in the duct. Infections: Bacterial or viral infections (like mumps) can cause the gland to swell and narrow the duct. Stenosis: Narrowing of the duct due to scar tissue, often from previous trauma or chronic inflammation. Sjögren’s Syndrome: An autoimmune condition that causes inflammation and reduces saliva production, leading to gland enlargement. Tumors: Though less common, tumors in the parotid gland can press against the duct and cause a blockage. Recognizing the Symptoms Symptoms typically worsen during or immediately after eating, as this is when the gland tries to produce the most saliva. 13 sites Parotid Duct Obstruction | Cedars-Sinai If you have parotid duct obstruction, you may have symptoms, such as pain and swelling, near the back of your jaw. Some people hav... Cedars-Sinai How to Unblock a Salivary Duct: Quick Relief - Liv Hospital Feb 16, 2026 —
If left untreated, this can lead to an abscess, which may require surgical drainage. If a stone remains lodged for too long,
Most people rarely think about their salivary glands until something goes wrong. But for those who have experienced it, a blocked parotid gland is an unforgettable, painful, and often anxiety-inducing ordeal.
: Drink plenty of water to thin the saliva and help flush out the obstruction. | | Plain radiography | Poor (only 20-40%