Increased bronchial vascular bundles in both lungs are most often seen in crashing lung infections. Patients with prolonged bed rest, recurrent respiratory infections, and the occurrence of heart failure are prone to pulmonary hemorrhagic effects, and the presence of increased bilateral bronchial bundles and vascular bundles in the lower lobes of both lungs is mainly due to the congestion of blood vessels accompanying the bronchioles. If CT found this change need to further improve a variety of examination indicators, including chest CT, blood test, electrocardiogram examination, cardiac ultrasound and whether there is diabetes mellitus, coronary heart disease, hypertension and other cardiovascular and cerebrovascular diseases. During the examination, attention is paid to the presence of pleural effusion, abdominal effusion or bilateral lower extremity edema and other changes suggestive of chronic heart failure. On the lungs there is an increase in bilateral lung bronchial vascular bundles belonging to the manifestation of pulmonary congestion, which requires active treatment of the primary, control of infection and correction of heart failure.