The Problem of Drooling While Sleeping Should Not Be Ignored

A Case Study: Xiao Liang’s Experience
Xiao Liang, a 25-year-old programmer from China, often works late and stays up gaming, leaving him exhausted. He noticed frequent drooling while sleeping, which embarrassed him. Concerned, he visited a doctor who, after learning that Xiao Liang drooled on the same side, recommended a CT scan. The results showed early signs of cerebral blood vessel blockage, which, if left undetected, could have led to cerebral infarction or hemorrhage.

Where Does Human Saliva Come From?
Salivation is controlled by the autonomic nervous system. The salivary glands, including the sublingual, parotid, and submandibular glands, produce saliva, keeping the mouth moist, aiding digestion, and cleaning the oral cavity. Healthy adults secrete about 1-1.5 liters of saliva daily. Stress, fatigue, and sleep position can cause drooling.

Possible Causes of Drooling in Adults

Oral Diseases – Conditions like gingivitis or misaligned teeth can lead to excessive salivation.
Facial Paralysis – Muscle weakness makes saliva control difficult.
Gastroesophageal Reflux – Acid reflux can stimulate excess saliva.
Parkinson’s Disease – Impaired swallowing increases drooling.
Cerebral Thrombosis – Blocked brain vessels weaken muscle control.
Arteriosclerosis – Poor brain oxygenation affects facial muscles.
Ways to Reduce Drooling

Change Sleeping Position – Sleeping on your back helps reduce drooling.
Maintain Oral Hygiene – Regular brushing and flossing prevent dental issues.
Adjust Medication – Consult a doctor about possible alternatives if medications contribute to drooling.
Drooling can signal underlying health issues, so persistent symptoms should not be ignored.