Coughing yellowish-green sputum is usually not self-healing, and is considered to be related to respiratory diseases, but active treatment can generally have a better outcome. Coughing up yellowish green sputum often suggests that there may be staphylococcus, Streptococcus pneumoniae, Pseudomonas aeruginosa and other bacterial infections, which are seen in chronic bronchitis, lobar pneumonia, bronchiectasis, lung abscess, cavitary tuberculosis combined with suppurative infections and other respiratory diseases, and usually cannot be cured by themselves. For the above diseases, if the patient actively cooperates with the doctor, the prognosis is usually good and can be cured. If no attention is paid, the condition will be aggravated and the health of the body will be seriously affected. Meanwhile, people with yellowish-green sputum need to pay attention to the rationality of diet, drink plenty of water, and create a good living environment. It is recommended that people with yellowish-green sputum undergo a detailed examination to determine the cause of the illness and then take medication as prescribed by the doctor in order to improve the symptoms and quality of life.