Public condition directory
Browse public condition summaries from China medical resources by stable specialty category.
SARS
Severe Acute Respiratory Syndrome (SARS) is an acute respiratory infectious disease caused by the SARS coronavirus. When it was first discovered, it was also known as infectious atypical pneumonia, or simply atypical pneumonia. The main symptoms include fever, dyspnea, muscle aches, fatigue, dry cough with little sputum, and diarrhea.
View detailsAcute bronchitis
Acute bronchitis refers to acute inflammation of the bronchial mucosa, usually caused by various pathogens such as viruses, bacteria, and mycoplasma, with viral infections being the most common. This disease is common in the elderly, children, and individuals with weakened immune systems. The main symptoms include cough, expectoration, and fever, which generally last for 2 weeks and are usually not severe.
View detailsPulmonary fibrosis
Pulmonary fibrosis is the end-stage lung change of interstitial lung disease, characterized by fibroblast proliferation, massive extracellular matrix deposition, and destruction of lung tissue structure, caused by various factors. The etiology of pulmonary fibrosis is complex, and most causes are unknown. A few cases may be related to environmental factors, drugs, or other diseases. The main symptom of pulmonary fibrosis is dyspnea, often accompanied by a dry cough.
Lymphangioleiomyomatosis
Lymphangioleiomyomatosis (LAM) is a rare, progressive, multi-system tumor disease. It has an extremely low incidence, approximately 1 in a million, and almost exclusively affects women, particularly those of childbearing age, with an average age at diagnosis of around 40 years. It primarily affects the lungs, typically presenting as diffuse cystic changes, severely impacting lung function. Currently, there is a lack of effective treatment methods.
View detailsInfluenza
Influenza, commonly known as the flu, is an acute respiratory infectious disease caused by influenza viruses. There are different types of influenza, including seasonal flu (prevalent annually in winter, often from November to March), the 2009-2010 H1N1 flu (also known as swine flu), and avian flu. Clinical manifestations are primarily systemic toxic symptoms such as high fever, fatigue, headache, cough, and generalized muscle aches, while respiratory symptoms are relatively mild.
View detailsHemoptysis
Hemoptysis, commonly known as coughing up blood, refers to bleeding from the larynx and lower respiratory tract or lung tissue, which is expelled through coughing. It is one of the common emergencies in respiratory medicine, and sudden massive hemoptysis can lead to suffocation and death. Hemoptysis can be caused not only by respiratory system diseases but also by circulatory system diseases, trauma, other systemic diseases, or systemic factors.
View detailsAtelectasis
Atelectasis refers to a reduction in the volume or air content of a lung segment or lobe. It occurs when the affected lung tissue collapses and loses normal lung function due to bronchial stenosis or insufficient alveolar surfactant, leading to atelectasis. Mild atelectasis is usually asymptomatic, while severe cases commonly present with chest tightness, shortness of breath, dyspnea, and an irritating dry cough.
View detailsTracheal foreign body
Tracheal foreign body is one of the life-threatening emergencies caused by foreign body obstruction of the trachea. This disease is common in children under 3 years old. The main symptoms are upper airway obstruction, including severe paroxysmal cough, shortness of breath, cyanosis, etc., followed by dyspnea and even cardiac arrest.
View detailsPulmonary edema
Pulmonary edema is a condition caused by an imbalance in the production and reabsorption of fluid within the lungs, leading to a rapid accumulation of a large amount of fluid that cannot be absorbed. This fluid extravasates from the pulmonary capillaries and collects in the alveoli, pulmonary interstitium, and small bronchi, resulting in severe impairment of lung ventilation and gas exchange. Key symptoms include extreme dyspnea, orthopnea, cyanosis, profuse sweating, and paroxysmal coughing accompanied by a large amount of white or pink frothy sputum.
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