1. Patients with pneumococcal pneumonia have typical rust-colored sputum, and staphylococcal pneumonia is mostly purulent sputum, with a large amount, with blood capillaries or pus blood.
2. Patients with chronic bronchitis are mostly white mucus and serous foamy sputum.
3. Patients with infiltrative tuberculosis are mostly dry cough, or a small amount of mucus sputum.
4. Bronchial lung cancer coughs up sputum according to different types, the sputum of central lung cancer is bloody, and a large amount of mucus sputum can be seen in alveolar cell carcinoma.
5. Yellow jelly-like sputum suggests a viral infection.
6. Green sputum suggests Pseudomonas aeruginosa infection.
7. Pink foamy sputum is characteristic of pulmonary edema.
