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Parotid Duct Obstruction

Medically reviewed by Last updated on Jun 5, 2024.

What is a parotid duct obstruction?

A parotid duct obstruction (PDO) is when your parotid gland is blocked. Your parotid glands are found in your cheeks, over your jaw and in front of your ears. They release saliva into your mouth through the parotid duct. Saliva helps break down food and protect your teeth.

What causes a PDO?

Your parotid duct may narrow or become blocked because of an injury or infection. Minerals in your saliva can harden and form a stone that blocks the duct. Stones may form if you do not produce enough saliva. You also may have a mass that blocks the duct.

What are the signs and symptoms of a PDO?

How is a PDO diagnosed?

Your healthcare provider will examine your face and mouth. Your provider will feel your parotid gland to learn how swollen it is. You may need any of the following:

How is a PDO treated?

How can I manage my symptoms?

How can I help prevent a PDO?

When should I seek immediate care?

When should I call my doctor?

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Further information

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