Lobar pneumonia can be caused by a variety of bacterial infections such as Streptococcus pneumoniae, Staphylococcus aureus, Haemophilus influenzae and other bacterial infections, the most important of which is Streptococcus pneumoniae. 1. Lobar pneumonia is also known as Streptococcus pneumonia, Streptococcus pneumoniae can colonize the normal nasal mucosa, and when the body resistance is lowered, the bacteria can invade the alveoli leading to lobar pneumonia, and the disease can be induced by drenching in the rain, exertion, and drunkenness. 2. Patients may show symptoms such as sudden high fever, chest pain, coughing rust-colored sputum and so on. Severe cases can lead to many complications, such as pulmonary granulomatous changes, lung abscess, sepsis, infectious shock, etc. Patients need to follow the doctor’s instructions for anti-inflammatory treatment. Patients need to follow the doctor’s instructions for anti-infection treatment, such as penicillin, amoxicillin, levofloxacin and other drugs.