What’s with the black phlegm?

Black sputum can be seen in physiological conditions, but also in pathological conditions, such as pneumonia, chronic bronchitis, lung cancer, upper respiratory tract infections, and other diseases.
1. Physiological conditions: Normal healthy people can have transient black sputum when they inhale a lot of dust particles or just eat pigmented drinks, etc. Generally, no special treatment is needed, and attention should be paid to wearing masks in dusty environments.
2. Pneumonia: such as lobar pneumonia, rust-colored sputum can appear, and the sensation can be manifested as black sputum. However, it is usually accompanied by cough, fever, chest tightness, dyspnea, chest pain and so on.
3. Chronic bronchitis: If there is chronic bronchitis, the bronchial wall may appear congestion, edema, ulcerated bleeding under the stimulation of inflammatory factors, etc. When the bleeding coagulates in the bronchial tubes, black blood clots of sputum may appear.
4. Lung cancer: If coughing black bloody sputum for a long time, lung cancer should be considered. Under the stimulation of tumor factors, necrosis and bleeding of lung tissues may occur, and then coughing black sputum may appear. However, it is usually accompanied by cough, chest pain, chest tightness, dyspnea, emaciation and other symptoms.
5. Upper respiratory tract infection: If the patient is acutely ill with upper respiratory tract symptoms, such as sore throat, nasal congestion, fever and other symptoms, we also need to consider upper respiratory tract infection. Due to the stimulation of inflammatory factors, the upper respiratory tract can appear edema, congestion, ulcers bleeding, etc., after coagulation can appear coughing up black blood.
6. Other diseases: such as bronchial dilatation, tuberculosis, etc. can appear coughing black sputum phenomenon, need to consult a doctor in time.
If coughing black sputum need to consult a doctor in time, follow the doctor’s instructions for treatment, to avoid aggravation of the condition.