Whether coughing up green sputum is good or bad depends largely on the specific etiology. Clinically, it is most commonly caused by bacterial infections, and the presence of green sputum, in particular, is most often suspected in Pseudomonas aeruginosa infections, also known as Pseudomonas aeruginosa. Its pathogenicity is relatively strong, and it is resistant to many anti-inflammatory antibiotics, so this condition is still more serious and less optimistic, and can be seen in lung infections and lung abscesses. You can test the blood routine, also can take sputum for bacterial culture as well as drug sensitivity test. Clinically, you can choose to fight against the treatment of bacteria, such as ceftazidime, cefoperazone, lomefloxacin, ofloxacin, etc., and if necessary, you can choose to choose more than two antibiotics combined treatment.