What is lung interstitium?

Dec 08, 2025 Source: Cainiu Health

Dr. Ren Yi

Introduction

Under normal circumstances, pulmonary interstitium refers to the structures within the lungs excluding airways and blood vessels, primarily including alveolar walls, connective tissue, extracellular matrix, and lymphatic vessels. It is important to maintain a regular daily routine and avoid chronic sleep deprivation that may deplete the body. Stay away from irritants such as dust, smoke, and harmful gases to reduce the burden on the lungs. Consistently engage in moderate aerobic exercise.

Under normal circumstances, pulmonary interstitium refers to the structures within the lungs excluding airways and blood vessels. It mainly includes alveolar walls, connective tissue, extracellular matrix, lymphatic vessels, and others. The details are as follows:

The pulmonary interstitium is a supportive structure composed of connective tissue, elastic fibers, capillaries, and other components located between the lung's alveoli and blood vessels. Its presence provides a stable anchoring base for alveoli, facilitates substance transport during gas exchange, maintains the elasticity and structural integrity of the lungs, and ensures smoother expansion and contraction of the lungs during respiration.

Maintain regular作息 (daily routines) and avoid long-term sleep deprivation that depletes the body. Stay away from irritants such as dust, smoke, and harmful gases to reduce the burden on the lungs. Engage in moderate aerobic exercise regularly to strengthen cardiopulmonary function. In terms of diet, consume more foods rich in vitamins and proteins to boost the body's immunity. Seek timely medical evaluation when experiencing symptoms such as cough, chest tightness, or shortness of breath—do not delay care.

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