Understanding Sinuses and Sinus Infections
Before exploring sinusitis treatment or surgery options, it’s important to understand the sinuses and how chronic sinusitis develops. The sinuses are air-filled spaces in the bones of the face and skull that filter the air we breathe. Normally, mucus produced by the sinuses is moved by tiny hair-like cells (cilia) and flows into the nose, moisturizing the air and trapping pollutants like dust, mold, viruses, and bacteria. When this process is disrupted, it can lead to chronic sinusitis.
Anatomy of the Sinuses
Normally, the thin mucus layer drains unnoticed into the throat and stomach, carrying away trapped pollutants and preventing infection. However, when the passages between the nose and sinuses become blocked—due to infection, inflammation, or nasal polyps—the mucus can’t drain properly. This buildup leads to sinusitis, or a sinus infection.
Healthy Vs. Sinusitis
On the healthy left side the mucus is circulating normally (green arrows) thru the nose and sinuses taking breathed in contaminants with it into the stomach. These healthy sinuses are filled with air. On the sick right side, swelling has blocked the sinus passage into the nose leading to stagnation of the mucus and infection.
Common Causes of Sinusitis
Some individuals are born with narrow sinus outflow tracts, which can lead to recurrent sinus infections. Other contributing factors include a deviated septum, nasal polyps, and various nasal abnormalities. Generally, multiple factors play a role in sinus issues.
These factors can impair the mucous membranes’ ability to produce and transport the cleansing mucus blanket, our primary defense against upper respiratory infections:
Acid reflux (the reflux of stomach acid into the throat and nose).
Allergies to pollen, dust, animals and foods.
Exposure and sensitivity to mold.
Poor air quality, such as smoke, dust and mold.
Immune System Deficiencies
Severe Systemic Disease
Symptoms of Chronic Sinusitis
Sinusitis often leads to nasal congestion and facial pressure or pain, along with thick, discolored nasal discharge, coughing, asthma symptoms, upper tooth pain, bad breath, fatigue, and loss of taste and smell. Anosmia, or loss of smell, should not be ignored, as it can impact daily life and quality of life. If you’re experiencing these symptoms, contact us for an evaluation in NYC, where our doctors can determine the underlying cause and recommend effective treatments, including sinus surgery if needed.
Frequently Asked Questions
The sinuses are air-filled spaces located in the bones of the face and skull that help filter the air we breathe. They produce mucus that is moved by tiny hair-like cells called cilia to the nose, moisturizing the air and trapping pollutants such as dust, mold, viruses, and bacteria to protect the respiratory system.
Sinusitis occurs when the passages between the sinuses and the nose become blocked, preventing mucus from draining properly. This blockage can be caused by infections, inflammation, nasal polyps, or anatomical abnormalities, leading to mucus buildup and infection.
Chronic sinusitis symptoms include nasal congestion, facial pressure or pain, thick discolored nasal discharge, coughing, asthma symptoms, upper tooth pain, bad breath, fatigue, and loss of taste and smell. Loss of smell, or anosmia, is particularly impactful and should be addressed promptly.
Several factors can contribute to chronic sinusitis, such as narrow sinus outflow tracts, deviated septum, nasal polyps, acid reflux, allergies, exposure to mold, poor air quality, immune system deficiencies, and severe systemic diseases. These factors impair the mucous membranes' ability to clear mucus effectively.
When the passageways between the sinuses and the nose become blocked, mucus cannot drain properly. This creates a stagnant environment where bacteria and viruses can thrive, leading to inflammation and sinus infections, commonly known as sinusitis.
Mucus produced by the sinuses traps airborne contaminants, while the cilia move this mucus toward the nose where it is swallowed. This cleansing process helps protect against infections by removing pollutants and preventing mucus buildup.
If you experience persistent symptoms such as nasal congestion, facial pain, thick nasal discharge, coughing, fatigue, or loss of smell, you should consult a doctor. Early evaluation can detect the underlying cause, and treatments including surgery may be recommended to relieve chronic or severe sinusitis.