Coughing up phlegm repeatedly, what diseases could it be?
Sputum is the secretion of the bronchi and trachea, or the exudate in the alveoli, which is coughed up. Expectoration...
coughed
Sputum is the secretion of the bronchi and trachea, or the exudate in the alveoli, which is coughed up. Expectoration...
