Question

Why saliva comes out of mouth while sleeping?

Answer 1

Drooling while sleeping could happen for a number of reasons. It is a fairly common condition for most people, but sometimes, it could indicates a serious issue.
Drooling while sleeping or sialorrhea is not only about the production of excessive saliva, but about the secretion of saliva that drools out of your mouth. You actually produce more saliva in a waking state, but you keep swallowing that, which you cannot do consistently when you're in deep sleep. This often makes people ask, "Why do I drool when I sleep?" You need to know that a number of things can contribute to this situation and you can actually make things better by taking certain steps.

1. Side Sleep Posture
Are you a side sleeper? This may well be the answer to "Why do I drool in my sleep?" When you sleep on your side, gravity can cause your mouth to open and make drool pool on the pillow instead of draining down.This is one of the most common causes for drooling while sleeping.

2. Sinus Infection
The reason behind your swallowing and breathing problems may be a sinus infection. This may as well cause drooling while sleeping. You may also notice your condition becoming worse when you have flu – this blocks your nasal passage, making you breathe through your mouth and causing saliva to flow out of your mouth.

3. Acidity or GERD
If you're suffering from acidity or GERD, this may be the reason why you're producing excessive saliva. Acidity makes the gastric acid to stimulate your esophagus, which in turn excites the esophagosalivary reflex and causes excessive saliva production.

4. Allergies or Poisoning
Your body may be producing excessive saliva due to allergic rhinitis, food allergy, poisoning especially pesticides and reaction to insect or snake venom. These conditions often result in excessive drooling. Sometimes severe allergy or poisoning can be a life-threatening situation, so it’s important to seek medical help in time if such allergies or poisoning occurs.

5. Tonsillitis
Tonsils are the glands present at the back of your throat. These glands sometimes become inflamed and restrict the drainage of accumulated saliva down your throat. This inflammation is called tonsillitis, which is a common cause for drooling when sleeping. You may also experience drooling due to strep throat.

6. Dental Problems
Gum or teeth infections, teething, and other dental problems can also increase the production of saliva.

7. Use of Certain Medications
One of the side effects of some specific medications is excessive drooling. The list includes Central Nervous System depressants, antidepressants, and medications such as pilocarpine and morphine.

8. Anatomy of the Mouth
The anatomy of your mouth may also contribute to drooling. Some people find it difficult to close their lips while sleeping. They face this difficulty due to a large tongue, enlarged tonsils, crowded teeth or swollen adenoids.

9. Neurological Disorders
You may find it difficult to manage saliva when you're suffering from a neurological disorder. It could be due to cerebral palsy, facial paralysis, Parkinson's disease, Alzheimer's disease, stroke, Autism Down syndrome, Amyotrophic lateral sclerosis or multiple sclerosis.

10. Other CausesPregnancy side effects such as reflux or nausea
Diets high in acidic content
Mononucleosis

Answer 2

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