Common ones include bronchiectasis, bronchial carcinoma, bronchial tuberculosis and chronic bronchitis.

The main mechanism of occurrence is: inflammation, tumors, and stones lead to increased permeability of bronchial mucosa or capillaries or rupture of submucosal blood vessels.

Commonly seen in tuberculosis, pneumonia, lung abscess, etc.

The cause of hemoptysis in our country is still tuberculosis.

The mechanism of hemoptysis caused by pulmonary tuberculosis is: tuberculosis increases capillary permeability, and blood leakage leads to blood or small blood clots in sputum. If small blood vessels are involved, the walls of the vessels may rupture. Causes moderate hemoptysis. If the small aneurysm formed by the branch of the pulmonary artery in the cavity wall ruptures, or the arteriovenous fistula formed by secondary bronchiectasis ruptures, it will cause massive hemoptysis and even be life-threatening.

It is common in mitral valve stenosis, followed by pulmonary hypertension or primary pulmonary hypertension caused by congenital heart disease, pulmonary embolism, pulmonary vasculitis, etc.

Manifestations: A small amount of hemoptysis or blood in the sputum, a large amount of hemoptysis (pink foamy sputum and thick dark red sputum).

Mechanism: It is mostly caused by pulmonary congestion causing rupture of alveolar walls or bronchial intima capillaries and rupture of bronchial varicose veins in the bronchial submucosa.

Blood diseases (leukemia, hemophilia, aplastic anemia, etc.)

Rheumatic diseases (polyarteritis nodosa, systemic lupus erythematosus)

bronchial endometriosis

Hemoptysis in young adults is common in tuberculosis, bronchiectasis, mitral stenosis, etc.

People over 40 years old with a long history of smoking should be highly vigilant about the possibility of bronchial lung cancer

The amount of hemoptysis is within 100 ml, which is a small amount of hemoptysis. 100 ml to 500 ml is a moderate amount of hemoptysis. More than 500 ml, or 100 to 500 ml of hemoptysis at one time is a large amount of hemoptysis.

Coughing up a lot of blood, mainly seen in cavitary tuberculosis, bronchiectasis and chronic lung abscess

Bronchial lung cancer rarely causes a large amount of hemoptysis, and the main manifestation is blood in the sputum.

Chronic bronchitis and mycoplasma pneumonia may also cause bloody sputum, but are often accompanied by severe coughing

Bright red hemoptysis due to tuberculosis, bronchiectasis, lung abscess, and bleeding disorders

Rust-colored sputum is seen in Streptococcus pneumoniae pneumonia, but also in paragonimiasis and alveolar hemorrhage.

Brick-red jelly-like sputum, seen in Klebsiella pneumoniae pneumonia

Hemoptysis caused by mitral stenosis is mostly dark red in color

Hemoptysis caused by left heart failure is serous pink foamy sputum

Hemoptysis caused by pulmonary embolism is thick, dark red sputum

Seen in tuberculosis pneumonia, lung abscess, epidemic hemorrhagic fever, bronchial lung cancer, etc.

More common in Streptococcus pneumoniae pneumonia, pulmonary embolism, tuberculosis, bronchial lung cancer, etc.

More common in bronchial lung cancer, mycoplasma pneumonia, etc.

More common in bronchiectasis, lung abscess, bronchial lung cancer, etc.

It can be seen with blood diseases, rheumatism, epidemic hemorrhagic fever, etc.

Bronchiectasis, lung abscess, bronchial carcinoma

Leptospirosis, Streptococcus pneumoniae pneumonia, pulmonary embolism