Early symptoms and precursors of pneumonia

Early in the onset of pneumonia, patients may show symptoms of upper respiratory tract infections such as colds, such as nasal congestion, runny nose, sore throat, mild cough, etc. If the patient is weak, or if the upper respiratory tract infection is not controlled, the inflammation in the upper respiratory tract will gradually descend to the lungs and cause pneumonia. If the patient shows obvious clinical manifestations such as cough, expectoration, fever, chest pain, dyspnea, etc., it is considered that pneumonia is more likely to exist. The pathogens causing pneumonia are generally bacteria, viruses or mycoplasma and other microorganisms are more common. It is necessary to treat according to the doctor's advice after confirming the type of pathogen.