Pulmonary fibrosis is caused when lung fibroblasts are chemically or physically injured, causing proliferation of interstitial lung tissue and massive accumulation of extracellular matrix, which means that normal alveolar tissue is damaged and then abnormally repaired by interstitial lung cells. We all know that pulmonary fibrosis is very damaging to the lungs and the body, and the consequences can be very serious if not treated in a timely manner. So how should we prevent it? 1.Avoid infection Lung infection will further worsen the symptoms and condition of pulmonary fibrosis, if you find subtle changes in breathing and coughing aggravation, you should also report to your doctor in time for treatment as soon as possible. 2.Ensure rest to ensure your regularity, get enough sleep, and not to strain your body and mind is very effective for your condition. 3. Quit smoking A good way to prevent further damage to the lungs is to avoid external stimuli, quit smoking as soon as possible, and stay away from dust and smoke concentrations. 4.Stable mind Keep a positive state of mind to face the disease, adjust the emotions, do not think nonsense, and actively cooperate with the treatment is the wise choice. 5.Control the standard weight Being overweight will increase the burden on the heart and lung capacity, which will also easily produce symptoms such as shortness of breath and chest tightness. It will also increase the pressure on the diaphragm and lead to breathing difficulties. 6, appropriate exercise to carry out appropriate exercise can enhance the body’s immunity and resistance to disease, do more aerobic exercise can help us better control the condition continues to deteriorate.