Pneumatitis is a special type of pneumonia, which is mainly seen in patients who are bedridden, immunocompromised, and have poor airway protection ability. These patients usually have less activity, so their ability to cough up sputum is weaker, which will lead to stagnation and edema of the lower lungs, which will be combined with bacterial infections and lead to the occurrence of pneumonia. Patients with pneumonia are usually characterized by bilateral lower lung disease, and it is not easy to cough up sputum, which often leads to the accumulation of sputum in the terminal bronchioles, which becomes the bacterial culture medium and makes it difficult to control the inflammation. Symptoms that precede the death of complicated pneumonia often include fever, cough, sputum that cannot be easily coughed up, dyspnea, and may even include cyanosis of the lips and face. Patients with crashing pneumonia must strengthen their activities more, even if they cannot move themselves, they can sit in a wheelchair more often, which will reduce the occurrence of crashing pneumonia, and also strengthen the drainage of sputum.