When interstitial pneumonia occurs in children, there may be fever, shortness of breath and other abnormal symptoms. 1. Fever: when interstitial pneumonia occurs in children, the lung tissue may have inflammatory changes such as congestion and edema, and the lung tissue may also be damaged, which may produce some endogenous pyrogen, leading to recurrent high fever. 2. Shortness of breath: If the lung lesions of children with interstitial pneumonia are large, it is likely to affect the normal function of the lungs, resulting in dyspnea and shortness of breath, and in severe cases, hypoxia may also occur. Some exudate may be present in the lesions of interstitial pneumonia, so that when the lungs are auscultated during respiration, lung rales may be present. Other systemic symptoms such as nausea and vomiting may also occur in interstitial pneumonia. It is recommended that babies with abnormalities be examined promptly and treated aggressively at the same time.