Where is phlegm formed?
Sep 20, 2022
Source: Cainiu Health
Dr. Guo Xiheng
Introduction
Phlegm is formed in the trachea, bronchi, and alveolar mucosa. This occurs when the mucosal glands and goblet cells in these areas are stimulated, leading to increased secretion and excessive mucus production, which results in phlegm formation. Let's explore why these three areas produce phlegm and discuss treatment approaches when there is excessive phlegm. Excessive phlegm may lead to bronchitis and potentially progress to pneumonia.
Phlegm is formed in the trachea, bronchi, and alveolar mucosa. This occurs when mucosal glands and goblet cells in these areas are stimulated, leading to increased secretion and excessive mucus production that becomes phlegm.
1. Trachea
Phlegm production in the trachea may result from bronchial mucosal congestion, edema, and exudation of inflammatory secretions. When bronchial secretions increase but are not promptly expelled, some phlegm can accumulate within the trachea.
2. Bronchi
Phlegm formation in the bronchi may be caused by factors such as bronchial mucosal congestion, allergies, or inflammation. During allergic reactions, the airways undergo a hypersensitivity response, continuously stimulating secretion and resulting in persistent phlegm discharge.
3. Alveolar Mucosa
Phlegm production in the alveolar mucosa may be due to physical or chemical factors affecting the body. For example, inflammatory mediators can stimulate the mucosa, causing mucosal edema and triggering excessive mucus production.
Excessive phlegm is mostly associated with infectious diseases of the respiratory system. Antibiotics are commonly used to treat respiratory infections. Frequently prescribed antibiotics include penicillins such as amoxicillin and amoxicillin-clavulanate potassium, cephalosporins such as cefadroxil and cefuroxime, and macrolides such as azithromycin. Note that a skin test should be performed before using penicillin-class antibiotics to check for penicillin allergy. During treatment, it is recommended to maintain a light diet, drink plenty of water, and avoid spicy or irritating foods. Excessive phlegm may lead to bronchitis or even pneumonia; therefore, timely medical consultation is advised.
