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)

• Reason:   Weakness or paralysis of one side of the face can impair the ability to close the lips and swallow saliva effectively.
• Signs:   Drooping of one side of the face, difficulty closing one eye, asymmetrical smile, slurred speech.

3. Gastroesophageal reflux disease (GERD)

• 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.4. Neurological diseases (Parkinson’s disease, MS, ALS)
  • Reason:   These diseases can affect the nerves and muscles responsible for swallowing (dysphagia), which leads to saliva accumulating and leaking during sleep.
  • Signs:   Tremors, stiffness, balance problems, changes in speech or coordination, progressive weakness.
  5. Sleep apnea or obstructive breathing problems
  • Why:   Mouth breathing during sleep – common in sleep apnea – can lead to increased salivation. This is often a sign of narrowed airways in the nose or throat.
  • Signs:   Loud snoring, shortness of breath at night, daytime fatigue, morning headaches.
  6. Cardiovascular or neurological events (stroke, TIA)
  • Reason:   A blockage or bleeding in the brain can impair muscle control, including the swallowing and facial muscles. This can lead to   excessive drooling on one side   during sleep.
  • Signs:   Sudden drooping of the face, weakness in the arm, slurred speech, confusion, dizziness.   This is a medical emergency.