The severity of double pneumonia lesions depends on the size of the double pneumonia lesions, whether the pathogenic microorganisms causing the double pneumonia lesions are drug-resistant, and how resistant they are. If the area of the lesion is not too large, and the causative organism is not drug-resistant, that is, it is sensitive to the available drugs, and the resistance is also relatively strong. In this case, the pneumonia lesions are less severe and will gradually resolve after treatment. If the area of the double pneumonia lesion is large or even white, the resistance is not too strong, and the infecting pathogenic microorganism may be resistant or insensitive to existing drugs. In such cases this double pneumonia lesion is more severe and may gradually worsen and even become life-threatening. In case of double pneumonia lesions, it is important to seek prompt medical attention to avoid irreversible consequences.