The causative factors of chronic pneumonia are mostly found in pathogenic infections, cigarette smoking, and impaired immune function.
1. Pathogen infection: for example, viruses, bacteria, mycoplasma, etc. invade the lung parenchyma and thus cause inflammation. The pathogenic bacteria may spread through air inhalation, blood transmission, and also may spread through the nearby infection location. For example, an upper respiratory tract infection, if not treated in time, may invade the lungs and lead to pneumonia.
2. Smoking: Smoking does not necessarily lead to chronic pneumonia, but there is a certain relationship with the disease, mainly because of the high temperature particles of tobacco during inhalation, as well as nicotine and other harmful substances will cause strong stimulation of lung tissue, indirectly causing the occurrence of pneumonia.
3. Impaired immune function: If the patient’s immune function is impaired, it will lead to decreased immunity, and it will be more likely to be attacked by pathogens, causing chronic pneumonia.
In addition, chronic pneumonia can also be caused by other reasons, you need to go to the hospital in a timely manner, combined with the medical history of the relevant examination, diagnosis and treatment.