What are the causes of interstitial pneumonia, please advise. Thank you

Hello, the main reasons for the occurrence of interstitial pneumonia are as follows:

1. Interstitial pneumonia is mostly caused by viruses, mainly adenovirus, respiratory syncytial virus, influenza virus, parainfluenza virus, measles virus, etc. Among them, interstitial pneumonia caused by adenovirus and influenza virus is more common and more severe, often forming necrotizing bronchitis and bronchopneumonia, and the course of the disease is easy to evolve into chronic pneumonia.

2. Mycoplasma pneumoniae can also cause interstitial pneumonia. After mycoplasma invades the respiratory tract, it mainly invades the bronchioles and peribronchial tissues, and can recover completely because there are no destructive lesions.

3. Hypersensitivity pneumonitis is a non-asthma allergic lung disease caused by inhalation of fungal spores, bacterial products, animal proteins or organic matter dust, with diffuse pulmonary interstititis as the pathological feature, which can be cured without sequelae.

4. Relatively rare, such as pneumococcal pneumococcal pneumonia and complications of Staphylococcus aureus pneumonia, purulent inflammation extends to interstitial tissues, causing purulent interstitial pneumonia.

Patients with interstitial pneumonia start from the early onset, and with the progressive aggravation of the disease, some patients will also have accompanying symptoms such as physical fatigue, weight loss, loss of appetite, joint pain, etc., and some patients will have cyanosis and clubbing, and these accompanying symptoms will continue to worsen with the progression of the disease. From the middle stage, many patients with interstitial pneumonia will integrate various diseases with the development of the disease, such as branching, tumor, heart failure, cor pulmonale, etc., and the interaction between these diseases and interstitial pneumonia will further threaten the lives of patients.

Pulmonary interstitium often refers to the interlobular septum of the lungs, as well as the support of the alveolar septum, and the structure is called interstitial pneumonia when there is an inflammatory response.

Infectious factors such as viruses can cause interstitial pneumonia, antiviral ** interstitial pneumonia can be recovered, non-infectious** more, some patients can not find a clear cause after careful examination, common causes, one is allergic inflammatory reaction, can lead to interstitial changes, in addition, connective tissue diseases, such as lupus erythematosus rheumatoid arthritis, scleroderma, etc., can often cause lung interstitial changes, **time minutes**. Interstitial lung disease should also be a connective tissue disease.

In addition, there are physical and chemical damage drugs, which can also lead to inflammatory changes in the lung interstitium, malignant tumors can also invade the lung interstitium, and form changes in the lung interstitium, so it must be clear in the process, and the alveolar lavage or lung tissue biopsy of bronchoscopy can be clear and can be guided.

Interstitial pneumonia is pneumonia caused by infection, and interstitial pneumonia is one of the anatomical classifications of pneumonia. Pneumonia is anatomically classified into lobar pneumonia, lobular pneumonia and interstitial pneumonia. Interstitial pneumonia is an inflammation of the interstitial lungs, involving the bronchial wall and peribronchial tissues, with alveolar wall hyperplasia and interstitial edema.

Because the lesion is only in the interstitium of the lungs, the respiratory symptoms of such patients are relatively mild, and there may be significant dyspnea when the lesion is extensive. Pulmonary interstitial pneumonia is mostly caused by fungi, viruses, mycoplasma, chlamydia, and a small number of bacterial infections. Imaging is unilateral or bilateral interstitial changes, which can be ground-glass and grid-like, and may have small atelectasis shadows, which are given differently for different pathogenic bacteria**.

Interstitial pneumonia is closely related to viral and bacterial infections: 1. Viral infection: viruses mainly include adenovirus, upper respiratory syncytial virus, etc.; 2. Bacterial infection:

Other bacteria, such as fungi and legionella, are relatively uncommon; Interstitial pneumonia is mainly caused by bronchial infection with mycoplasma and chlamydia, and is more likely to occur in people with reduced functions of various enzymes in the body, people with low immune function, such as the elderly and young children, and people with underlying medical history such as blood diseases, tumors, diabetes, etc.

Interstitial pneumonia is one of the lung diseases, and there are many causes of interstitial pneumonia, and the following is a summary of the eight common ones.

**1. Chronic diseases of rheumatism and immunity: systemic sclerosis, polymyositis, dermatomyositis, systemic lupus erythematosus, rheumatoid arthritis, mixed connective tissue disease, ankylosing spondylitis.

4. Inhalation of inorganic dust: talc, iron pneumoconiosis, tin pneumoconiosis.

**5. Inhalation of organic particles (allergic alveolitis): pigeon breeder's lungs, farmers' lungs.

**6. Surgery for primary diseases (not classified into types), neoplastic diseases: pulmonary lyocneduct carcinoma, bronchoalveolar carcinoma, pulmonary lymphoma, Kaposi sarcoma.

**7. Idiopathic fibrosis diseases are prominent: physical-onset fibrosis, familial idiopathic pulmonary interstitial fibrosis, acute interstitial pneumonia, desquamative interstitial pneumonia, non-specific interstitial pneumonia, lymphocytic interstitial pneumonia, autoimmune pulmonary interstitial fibrosis.

8. Others: neurofibromatosis, tuberous sclerosis, sarcoidosis, eosinophilic pneumonia, pulmonary alveolar protein precipitation, diffuse alveolar hemorrhage, alveolar microstone disease, metastatic calcification.

Interstitial pneumonia** includes infectious factors, environmental factors, drug or**related factors, connective tissue diseases, and other factors;

Interstitial pneumonia refers to a group of interstitial lung diseases with inflammation and pulmonary fibrosis.

1.Infectious factors: Can be caused by mycoplasma, chlamydia, bacteria, viruses, or Pneumocystis.

2.Environmental factors: long-term exposure to undesirable environments such as dust, such as metal dust such as brass and lead, or organic dust such as animal hair and feathers.

4.Connective tissue diseases: patients with systemic scleroderma, rheumatoid arthritis, Sjögren's syndrome, etc.

5.Others: Smoking, genetics, etc. can increase the risk of developing the disease.

If you feel unwell, go to the hospital as soon as possible to clarify**, and formulate an individualized diagnosis and treatment plan according to the specific condition.

Interstitial pneumonia is an interstitial inflammatory and fibrotic disease of the lungs caused by a variety of causes, and the lesions are mainly in the bronchi, bronchioles and perivascular areas, as well as in the connective tissues of the interlobular septum, with lymphocyte and monocyte infiltration as histological features. The clinical manifestations of interstitial pneumonia are nonspecific, and early signs are often milder than symptomatic, often presenting with fever, dry cough, sputum production, chest pain, and progressive dyspnea.