Drooling during sleep might seem like a harmless quirk, but it could actually be a sign of an underlying health issue. While occasional drooling is normal, frequent or excessive drooling (also known as sialorrhea) may indicate conditions that affect your nervous system, digestive tract, or overall well-being. Here are six potential diseases or disorders linked to drooling at night—and why they matter.
1. Sleep Apnea
What It Is : A condition where breathing repeatedly stops and starts during sleep, often due to blocked airways.
Why It Causes Drooling : People with sleep apnea tend to sleep on their sides or stomachs and breathe through their mouths, which can lead to increased saliva production and pooling.
Signs to Watch For :
