Purulent sputum refers to mucus that is produced by the respiratory tract and contains pus, which is a thick fluid that is typically a sign of infection. It is often yellow or green in color due to the presence of white blood cells, bacteria, and cellular debris. The presence of purulent sputum can be associated with various respiratory conditions, including:
- Bacterial pneumonia: An infection of the lungs that can lead to the production of purulent sputum.
- Chronic bronchitis: A long-term inflammation of the airways often related to smoking or pollution, leading to increased mucus production.
- Bronchiectasis: A condition characterized by abnormal widening of the bronchi, often resulting in chronic cough and purulent sputum.
- Lung abscess: A localized infection in the lung that can produce pus.
- Tuberculosis: A bacterial infection that can affect the lungs and lead to purulent sputum.
If someone is producing purulent sputum, especially if accompanied by other symptoms like fever, chest pain, or difficulty breathing, it is important to seek medical evaluation. A healthcare provider may perform tests such as a sputum culture or imaging studies to determine the underlying cause and appropriate treatment.
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