Hemoptysis
Respiratory diseases are mostly symptoms of cough and sputum. The sputum can be grayish-white mucus sputum, or yellow-green pus sputum. Sometimes coughed sputum with bright red blood is called hemoptysis. Medically, hemoptysis is caused by bleeding from the trachea, bronchi, or lung tissue below the throat, which is discharged from the body by coughing.
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