Sinusitis. Causes of sinusitis.

Sinusitis — an infectious-inflammatory process involving the mucosa of the paranasal sinuses. May have a viral, bacterial, fungal or allergic nature. Common symptoms characteristic for sinusitis include fever, pain in the projection of paranasal sinuses, nasal breathing difficulty, sero-purulent discharge from the nose.

Sinusitis. Causes of sinusitis.
The nasal cavity communicates with the family clauses (paranasal) sinuses: two frontal, two maxillary, two grid and a wedge. The sinuses are connected to the nasal cavity by narrow passages. Through these moves made permanent drainage (purification) of the sinuses. If the sinus for some reason cease to be cleaned, they stagnate secret and create favorable conditions for the development of sinusitis.

Sinus fistula can be blocked in different strains of intranasal structures (hypertrophic rhinitis, deviated septum, abnormal structure of the ethmoidal labyrinth and the turbinates).

Viral infection is another risk factor for sinusitis. As a result of inflammation of the mucous membrane of the paranasal sinuses and nasal cavity swells. Mucous glands begin to produce large amounts of secretions. Paranasal sinus fistula further narrowed due to swelling of the mucous and clogged with thick pathological secretion.

If the ventilation, stagnant secretions and lack of oxygen in the tissues of the sinuses become the impetus for the rapid development of conditionally pathogenic flora. It joins a bacterial virus infection.

The severity of the manifestations of sinusitis depends on the virulence of the bacteria cause inflammation. Widespread use of antibiotics leads to the fact that the bacterial flora, which caused the development of sinusitis, often has high resistance (resistance) to most antibiotics.

In recent years, increasingly sinusitis are caused by fungi. The reason for this trend also lies in the inappropriate use of antibiotic therapy, which adversely affects the immune system, violates the normal microflora composition and creates favorable conditions for the development of mycotic infections.

Sinusitis at the initial stage is not necessarily triggered by microbes. Swelling of the mucosa, resulting in the closure of anastomoses paranasal sinuses can be caused by inhalation of cold air and a number of chemicals.

However, the most common cause of sinusitis are immunodeficiency and allergic reactions. Allergy causes vasomotor rhinitis, one manifestation of which is swelling of the mucous nasal cavity. The process is repeated several times. As a result of chronic sinusitis occurs in approximately 80% of patients with vasomotor rhinitis.

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Sinusitis. Symptoms of sinusitis and Causes of sinusitis.

Symptoms of sinusitis and Causes of sinusitis.

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