Frequent salivation during sleep could be a sign of one of these 6 diseases.

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

• Complaints:   Gum inflammation, tooth infections, poorly fitting dentures, misaligned teeth.
• Reason:   Inflammation or discomfort in the mouth can stimulate excessive saliva production and make swallowing difficult during sleep.
• Signs:   Reddened gums, toothache, bad breath, visible plaque or swelling.

2. Weakness or paralysis of the facial nerve (e.g., Bell's palsy)