Salivary stones form when chemicals in the saliva deposit. They mostly contain calcium. The exact cause is not known. But factors contributing to decreased saliva production and/or thickened saliva may be risk factors for salivary stones. These factors include: dehydration, poor eating, and use of certain medications, such as antihistamines, blood pressure drugs, psychiatric drugs, and bladder control drugs. Trauma to the salivary glands may also increase risk for salivary stones.
The stones cause no symptoms as they form, but if they reach a size that blocks the duct, saliva backs up into the gland causing pain and swelling. The pain, which is usually felt in a single gland, may be intermittent and get progressively worse. Inflammation and infection within the affected gland may follow.
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Read the Original Article: Salivary Gland Stones