Patients with lobar pneumonia present with enhanced fibrillation in the affected area during physical examination, mainly due to infection with common Streptococcus pneumoniae, which triggers large inflammatory infiltrates in large lobes and segments of the lung. The mucous membrane of the affected lung tissue appears significantly congested, edematous, and exuding large amounts of inflammatory secretions, when the lung tissue on the affected side is relatively dense, showing pathological changes of solid lung lesions. The inflammatory lesions in the lungs are very conducive to sound conduction, and the lung tissue is stronger than normal in conducting sound, so patients with lobar pneumonia have enhanced palpatory conduction of speech in the affected lung, which means that speech fibrillation is enhanced.