The decision to do a bacterial culture is made on a case-by-case basis. Milder inflammation, or infections with bacteria that are known to be more common, can usually be treated without bacterial culture. In more critical cases, the main focus is to control symptoms and save lives as soon as possible, so empirical treatment can be administered before bacterial culture is performed. For those who cannot determine the type of pathogen, produce drug resistance or clear bacterial infection of serious infection, it is necessary to promptly conduct bacterial culture to clarify the causative bacteria, and then use sensitive antibiotics for treatment. 1, the condition is mild: If the inflammation is mild, and the infection is known to be more common bacteria, even without bacterial culture, the doctor can take empirical treatment measures based on the symptoms, usually not It usually does not take long to heal. In this case, bacterial culture or not may not have much impact on the treatment of the disease, so the doctor may not recommend bacterial culture; 2. Critical condition: If the condition is critical, it is imperative to control the symptoms in time to avoid further development of the disease and threaten life safety. Bacterial culture can be temporarily withheld, and empirical treatment measures or broad-spectrum antibacterial drugs can be given first to slow down the disease process. If you wait for bacterial culture results before treatment, regardless of whether the condition is critical, you may delay the disease. If the patient has a condition that cannot be clearly identified as the causative organism, repeated use of antibiotics to produce resistance, serious bacterial infection, etc., bacterial culture is needed to identify the causative organism before treatment, and blind use of drugs will not be beneficial to the remission of the condition.