What Causes a Blocked Nose?

July 15, 2023 | by Yashaswi Pathakamuri | Posted in FAQ's

Causes of a Blocked Nose

A blocked nose, also known as nasal congestion or stuffy nose, can occur due to various factors. Some common causes include:

  1. Common cold and viral infections: The most common cause of a blocked nose is the common cold, which is usually caused by viral infections. When you have a cold, the lining of your nasal passages becomes inflamed and swollen, leading to congestion and a blocked nose.
  2. Sinusitis: Sinusitis is an inflammation of the sinuses, which are air-filled spaces in the facial bones. When the sinuses become inflamed and filled with excess mucus, it can result in nasal congestion and a blocked nose.
  3. Allergies: Allergic reactions to substances such as pollen, dust mites, pet dander, or mold can cause nasal congestion. This occurs when the immune system reacts to these allergens, leading to inflammation and increased mucus production in the nasal passages.
  4. Nasal polyps: Nasal polyps are noncancerous growths that develop in the lining of the nasal passages or sinuses. When nasal polyps become large or numerous, they can block the nasal passages and cause congestion.
  5. Deviated nasal septum: The nasal septum is the partition that separates the two nostrils. A deviated septum occurs when the septum is shifted or crooked, often due to genetics or injury. This misalignment can obstruct airflow and cause a blocked nose.
  6. Environmental irritants: Exposure to irritants such as cigarette smoke, strong odors, chemical fumes, or pollution can irritate the nasal passages and lead to congestion.
  7. Medications: Certain medications, particularly nasal decongestant sprays, if used for a prolonged period, can cause rebound congestion when stopped, leading to a blocked nose.
  8. Structural abnormalities: Rarely, structural abnormalities of the nasal passages or abnormalities in the nasal anatomy can contribute to chronic nasal congestion.

It’s important to identify the underlying cause of nasal congestion to determine the appropriate treatment. Home remedies such as using saline nasal sprays, staying hydrated, and using humidifiers can provide temporary relief. Over-the-counter decongestants and antihistamines may also be helpful in some cases. However, if nasal congestion persists or is accompanied by other concerning symptoms, it is advisable to consult a healthcare professional for a proper evaluation and guidance.

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