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Doctor insights on: What Causes Black Stuff In Phlegm

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What causes black stuff in phlegm?

What causes black stuff in phlegm?

Smoke, old blood: Most common cause of black phlegm would be from smoke such as from cigarette/marijuana smoking. Coal miners used to have black phlegm but now they wear protective gear. Another cause would be old dried up blood from a bad sinus infection or bronchitis infection. Heavily polluted air such as from a recent fire is another possibility. ...Read more

Dr. Angelina Postoev
869 doctors shared insights

Phlegm (Definition)

Phlegm is the thick, sticky mucus secreted by the surface of the respiratory tract during a cold or other respiratory infection. The respiratory tract includes the nose and sinuses, throat, voice box, bronchi, and lungs. Phlegm is mucus that may contain bacteria, viruses, respiratory surface cells, and inflammatory cells. Normal mucus is not phlegm, but a protective layer secreted ...Read more


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I coughed up thick black phlegm, what can cause this?

I coughed up thick black phlegm, what can cause this?

Dark phlegm: Very dark brown or black phlegm could be fungus, dust particles/ material from a worksite (grinding etc without a mask) or even blood that with exposure to air has become dark. Either way, an evaluation should include a sputum sample and a chest x-ray so your doctor can determine the cause and offer treatment. ...Read more

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What does it mean when you're coughing up phlegm with black stuff in it?

What does it mean when you're coughing up phlegm with black stuff in it?

Tar?: Smoking, inhalation, or blood may cause discoloration of sputum which is mucus from lung with content of cells and contaminants to be eliminated. Nasal blood, mucous, could mimic in some settings. ...Read more

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Is it normal to have nasty looking phlegm when you have a cold? Phlegm is yellowish green with black stuff in it. Is this normal? Or something bad?

Is it normal to have nasty looking phlegm when you have a cold? Phlegm is yellowish green with black stuff in it. Is this normal? Or something bad?

Head cold: A viral upper respiratory tract infection typically lasts a week. After that a heavy cough productive of thick,discolored sputum often means that a bacterial bronchitis infection has developed and antibiotics would help to clear it up faster than letting it linger. Fever and chills raise a concern about pneumonia. ...Read more

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Can smoking pot cause the black phlegm from smoking cigarettes to leave your body?

Can smoking pot cause the black phlegm from smoking cigarettes to leave your body?

No: It just adds a bit to it. Marijuana smoke has its own hydrocarbons or "tars, " although they do not seem to be as bad as the ones in tobacco. It does not in any way undo the harm of cigarette smoking. ...Read more

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Can Chronic cough for more than two months due to environmental allergens cause black and rusty phlegm for four days and then becomes white ?

Can Chronic cough for more than two months due to environmental allergens cause black and rusty phlegm for four days and then becomes white ?

See either ENT or: Get checked by either ENT or Lung specialist to check for the presence of some toxin, pathogen, or allergen present in the respiratory tissues. Presentation of exudate could vary. ...Read more

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H pylori: could it cause black phlegm, shortness of breathe, and chest pain?

H pylori: could it cause black phlegm,  shortness of breathe,  and chest pain?

Possibly: If you have an H pylori ulcer with reflux this could cause your symptoms. Please see your doctor to check for this as well as look for other causes. Good luck ...Read more

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Can pneumonia in non smoking adults cause persistent low grade fever with black phlegm for 4 days and later became yellow?y?

Can pneumonia in non smoking adults cause persistent low grade fever with black phlegm for 4 days and later became yellow?y?

Yes see a doctor: Yes it can see a doctor I am concern about the black phlegm go and see a doctor you need proper evaluation by a physician good luck. ...Read more