Many people unknowingly sleep with their mouths open — a habit often brushed aside as harmless. But health experts say it can sometimes be a sign of underlying medical issues that should not be ignored.
According to medical specialists, sleeping with your mouth open is not always linked to disease. In most cases, it happens when the nose is blocked due to a severe cold, allergies, or enlarged tonsils.
Children are more prone to this, especially if enlarged adenoids or tonsils partially block their nasal passages. The problem often improves as they grow older.
Possible medical causes
A bent or crooked nasal septum can also lead to nasal congestion, forcing a person to breathe through their mouth. If the blockage becomes severe, surgery may be recommended.
Experts warn that if mouth breathing is accompanied by snoring or difficulty breathing during sleep, it could indicate a more serious condition such as sleep apnea, which requires immediate medical evaluation.
Impact on oral health and sleep quality
Mouth breathing can dry out the mouth, leading to poor oral hygiene, bad breath, and even irritation or inflammation. It may also disturb sleep quality, especially when paired with other sleep disorders.
Health experts suggest consulting a specialist even if you do not experience symptoms like a dry throat, persistent cough, or breathing difficulty. Identifying and treating nasal obstructions early can prevent long-term complications and improve overall sleep health.
