Coughing up blood may be caused by suffering from tuberculosis, heart disease, chest trauma, bleeding gums and other reasons.
1. Tuberculosis: Mycobacterium tuberculosis can damage lung tissues and form cavities in the lungs, and when it damages the blood vessels in the lungs, the symptom of coughing up blood will appear.
2. Heart disease: the heart is connected to the pulmonary artery, when the heart disease progresses more seriously, especially when the left heart failure, it will make the pulmonary artery abnormally high pressure, the resistance of the pulmonary circulation increases, and the blood will infiltrate into the lungs, resulting in coughing up blood.
3. Chest trauma: Chest trauma can lead to coughing up blood when the lungs are injured.
4. Bleeding gums: Bleeding gums can cause a certain amount of blood to be present in the mouth, and when coughing up phlegm, the blood coming out of the gums can be coughed up by saliva or phlegm.
Cough bleeding may also have other causes, such as pneumonia, bronchial dilatation, lung cancer, etc. It is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.