If the patient presents with pericardial effusion and experiences elevated body temperature, it may indicate the presence of an infection, suggesting that the symptoms are worsening. Currently, the treatment for pericardial effusion primarily involves puncture, fluid extraction, and laboratory analysis. If the pericardial effusion is severe or abundant, fever may occur. Since fever is an indicator of inflammation, it is necessary to use antibiotics for active treatment in order to control this condition. If the body temperature continues to rise, sometimes it is also necessary to use antipyretic drugs to alleviate the symptoms. Persistent high fever indicates that the condition has become very serious, signaling that the infection indices are extremely severe.