In the grand symphony of human bodily functions, breathing usually takes a backstage role. It’s automatic, after all, something we do without thinking. However, the way we breathe—specifically, through the mouth—can have far-reaching consequences on our health that we often overlook. In this article, we’ll dive deep into the silent consequences of mouth breathing, exploring the causes and the harmful effects it can have on our well-being.

Causes of Mouth Breathing

Mouth breathing might be a habit, but it often stems from underlying causes. Let’s uncover the primary culprits:

1. Nasal Congestion

Persistent nasal congestion is one of the leading reasons people resort to mouth breathing. When your nasal passages are obstructed, due to allergies, infections, or anatomical issues, breathing through your mouth becomes a necessity.

nasal congestion

2. Enlarged Adenoids

The adenoids are glands located at the back of your throat, near the nasal passages. When these adenoids become enlarged, they can block the flow of air through your nose, forcing you to breathe through your mouth.

enlarged adenoids

3. Deviated Nasal Septum

A deviated nasal septum, where the wall between your nostrils is crooked or off-center, can severely impede airflow through your nose. This structural issue often leads to mouth breathing.


Harmful Effects of Mouth Breathing

Mouth breathing may appear inconsequential, but the effects it has on your health are far from benign. Let’s explore the myriad of negative consequences:


1. Bad Breath

Mouth breathing often leads to dry mouth, which is a breeding ground for odor-causing bacteria. Consequently, bad breath can become a persistent issue.

2. Dry Mouth

As mentioned, mouth breathing results in a dry mouth. Not only is this uncomfortable, but it also increases the risk of dental issues, like cavities and gum disease.

3. Improper Jaw Development

Breathing through the mouth can alter the development of the jaw, potentially leading to orthodontic problems, including an overbite or underbite.

4. Gum Disease

A dry mouth caused by mouth breathing can lead to a decrease in saliva production, increasing the risk of gum disease and tooth decay.

5. Crooked Teeth

Improper jaw development can cause misalignment of teeth, leading to crooked smiles and potential dental problems.

6. Early Aging

Chronic mouth breathing can result in facial changes, such as elongated faces and flatter features, giving the appearance of premature aging.

7. Poor Sleep

Mouth breathing during sleep can disrupt the quality of your rest, potentially leading to issues like snoring and sleep apnea.

8. May Cause High Blood Pressure in Adults

Studies have shown a link between chronic mouth breathing and high blood pressure in adults. Proper nasal breathing is crucial for maintaining healthy blood pressure levels.

9. Behavioral Disorders Leading to Tantrums

In children, mouth breathing has been associated with behavioral disorders, including ADHD and mood disturbances that can lead to tantrums and difficulty in concentrating.


Mouth breathing is a seemingly harmless habit, but its consequences can be profound. From dental issues to sleep disturbances and even potential links to high blood pressure, it’s crucial to recognize the importance of breathing through your nose. Understanding the causes and effects of mouth breathing is the first step towards a healthier, happier life.

For early diagnosis you can visit an ENT specialist or a pediatric dentist. Dr. Maha Alam of Toothfairy provides online consultaion for dentistry. To book an appointment click on the link below.


Can you fix the effects of mouth breathing?
The way to stop mouth breathing is to encourage your body to breathe through your nose. This will reverse some of the effects of mouth breathing, like snoring and dry mouth, almost immediately.
What are 3 negative effects of mouth breathing?

Breathing through the mouth all the time, including when you’re sleeping, can lead to problems. In children, mouth breathing can cause crooked teeth, facial deformities, or poor growth. In adults, chronic mouth breathing can cause bad breath and gum disease. It can also worsen symptoms of other illnesses.

Is it normal to breathe through your mouth sometimes?

Mouth breathing is sometimes a necessary function, particularly when a respiratory infection closes the nasal passages with drainage However, consistent or chronic mouth breathing, especially in children, is linked to slower growth, behavioral issues, dental and facial abnormalities.

Did you know that a high number of dental problems can be solved by taking precautions and changing habits? Tele-dentistry can help guide you in these matters and give you a solution in the comfort of your home.

You can always book an appointment with us and let us guide you in the best course of action to a quick recovery.