Understanding the Causes of Sinus Infections
Sinus infections, also known as sinusitis, occur when the cavities around the nasal passages become inflamed or swollen. This condition can be triggered by several factors:
1. Viral Infections
The most common cause of sinus infections is a viral infection, such as the common cold. These viruses can lead to inflammation and blockage of the sinus cavities.
2. Bacterial Infections
Sometimes, a bacterial infection can develop following a viral infection, causing further complications and prolonging symptoms.
3. Allergies
Allergies to pollen, dust mites, or pet dander can lead to sinus inflammation, making individuals more susceptible to infections.
4. Structural Issues
Structural problems such as a deviated septum or nasal polyps can obstruct sinus drainage, contributing to infection risk.
5. Environmental Factors
Exposure to environmental irritants like smoke, pollution, or strong odors can also trigger sinus inflammation and infections.
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