Drooling during sleep is common, especially in children and in certain sleeping positions. However, if it occurs frequently, suddenly, or in large amounts in adults , it could be a sign of an underlying health problem.
Occasional drooling is normal, but persistent drooling – especially when accompanied by other symptoms – should not be ignored. Here's what you need to know.
6 possible health problems associated with frequent nighttime drooling
1. Mouth or dental problems
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Complaints: Gum inflammation, tooth infections, poorly fitting dentures, misaligned teeth.
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Reason: Inflammation or discomfort in the mouth can stimulate excessive saliva production and make swallowing difficult during sleep.
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Signs: Reddened gums, toothache, bad breath, visible plaque or swelling.
2. Weakness or paralysis of the facial nerve (e.g., Bell's palsy)
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Reason: Weakness or paralysis of one side of the face can impair the ability to close the lips and swallow saliva effectively.
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Signs: Drooping of one side of the face, difficulty closing one eye, asymmetrical smile, slurred speech.
3. Gastroesophageal reflux disease (GERD)
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Reason: When stomach acid rises into the esophagus, this can trigger a reflex increase in saliva production as the body tries to neutralize the acid.
- Symptoms: Heartburn, sour taste in the mouth, nighttime cough, chest discomfort.
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