Analysis of illness: Hello, the main causes of pneumonia are infectious, physical and chemical (such as radiation, poisonous gas, poisons, drugs, etc. ), as well as immunity and allergies (such as allergies and rheumatism). ), but the acute pneumonia seen in clinic is mostly infectious pneumonia caused by various microorganisms, and its pathogens include bacteria, viruses, chlamydia, mycoplasma, rickettsia and parasites. Suggestion: It is recommended to go to a regular hospital for examination and treatment in time, and pay attention to cold and warmth; Keep the air circulation in the living and working environment; Pay attention to personal hygiene and wash your hands frequently; Strengthen exercise and enhance physical fitness; Avoid smoking and drink less;