It can also indicate a condition known as black lung disease that ... or heart disorder. In acute bronchitis, people usually stop coughing up phlegm within 3 weeks, according to the NHS.

Clear phlegm that’s associated with allergies is generally not as thick or sticky as the green sputum you see with bacterial bronchitis or the black phlegm from a fungal infection. Moving beyond ...

If you're coughing up brown mucus, though, you should see a doctor because this could be a sign of bronchitis. Black mucus is usually due to smoking Black mucus is most common among heavy smokers ...

But, she adds that it can also point to something more serious and may be caused by bacterial sinusitis, bacterial bronchitis ...

It could also be a sign of bronchitis, so check with your doctor if you're bringing up brown mucus. Black mucus: This could come from smoking or working in a place with a lot of dust and dirt.

Bronchitis is inflammation of the inner mucus lining of the bronchial tubes in the lungs. A nagging cough is one of the most prevalent bronchitis symptoms. A cough usually starts as dry but ...

A persistent wet cough that produces mucus stands as the most prominent symptom of allergic bronchitis. Unlike the dry, tickling cough of typical allergies, this cough brings up phlegm and often ...

A distinguishing feature of a bronchitis-related cough is the presence of mucus production A hacking cough is the primary symptom of bronchitis, according to the NHS. “A distinguishing feature ...

Cigarette smoking has been linked to overproduction of mucus associated with chronic bronchitis, according to a study conducted by researchers in New Mexico, US. The study indicates that cigarette ...