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As gross as it sounds, your mucus—be it clear, green, yellow, or brown—is a reflection of your overall health. Below, doctors explain how—and break down what each snot color means. Why snot ...
Then mucus can help carry pathogens out of your body, whether you blow your nose or cough it up, she says. How to decode your mucus. The color of your mucus can tell you information about your health.
Rhinorrhea is characterized by an excess amount of mucus produced by the mucous membranes that line the nasal cavities. The membranes create mucus faster than it can be processed, causing a backup of mucus in the nasal cavities. As the cavity fills up, it blocks off the air passageway, causing difficulty breathing through the nose.
This causes the mucus to get thicker and more difficult to clear. It can also cause a cascade that includes releasing "histamine and other secondary proteins to make the nose or throat swollen and ...
Phlegm is more related to disease than mucus, and can be troublesome for the individual to excrete from the body. Phlegm is a thick secretion in the airway during disease and inflammation. Phlegm usually contains mucus with virus, bacteria, other debris, and sloughed-off inflammatory cells.
In general, nasal mucus is clear and thin, serving to filter air during inhalation. During times of infection, mucus can change color to yellow or green either as a result of trapped bacteria [24] or due to the body's reaction to viral infection. For example, Staphylococcus aureus infection may turn the mucus yellow. [25]
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Sputum is mucus that is coughed up from the lower airways (the trachea and bronchi).In medicine, sputum samples are usually used for a naked eye examination, microbiological investigation of respiratory infections and cytological investigations of respiratory systems.