Lung cancer, lung abscess and tuberculosis are serious lung diseases. Generally speaking, the mortality rate of these diseases is relatively high. These diseases can lead to the development of vital signs. Pulmonary embolism is usually caused by obstruction of pulmonary artery and its branches, which will reduce or interrupt the blood supply to the lungs. Acute massive pulmonary embolism can be manifested as heartache, sweating, irritability, shortness of breath, syncope and increased heart rate. In severe cases, cardiac arrest may occur. Respiratory failure refers to impaired respiratory function, which can not effectively exchange gas, which may lead to hypoxia. Symptoms include heart failure, headache, increased lethargy and coma, impaired liver and kidney function and electrolyte disorder.

These conditions are related to patients' bad living habits. If you smoke for a long time and use spicy food, it will cause these abnormal diseases. If the patient has the basic disease of upper respiratory tract infection, if it is not treated in time, the condition will be more serious, resulting in adverse consequences affecting the patient's life. Once the patient finds symptoms, he needs immediate treatment. Patients with lung cancer, especially those with advanced lung cancer, are usually weak due to malnutrition caused by cachexia, and it is easy to cause lung infection because of long-term bed rest and cough with phlegm and cough.

Bronchial stenosis in patients with central lung cancer is likely to lead to obstructive pneumonia and atelectasis, and eventually lead to lung infection. Patients with lung cancer usually receive radiotherapy and chemotherapy. Radiotherapy is a local treatment, which will damage some healthy lung tissues and lead to decreased immunity during tumor treatment. Inflammation in the lungs leads to infection. Chemotherapy is to inject chemical drugs into the human body, killing and killing cancer cells, while damaging normal human cells, leading to inflammation, decreased immunity, bone marrow suppression and so on. , susceptible to infection and lung infection. Targeted drugs for lung cancer also have certain toxic and side effects, causing lung infection. Surgery is one of the main methods to treat lung cancer.

Improper postoperative wound care, postoperative malnutrition and improper postoperative activities will all lead to complications such as wound inflammation and lung infection. Lung cancer patients, especially those with advanced lung cancer, spend a long time in and out of the hospital. During hospitalization, due to weak body and low immunity, cross-infection and acquired pneumonia are prone to occur in the hospital. Lung infection in patients with lung cancer is difficult to control, and it is easy to become malignant and eventually lead to death.