Is coughing up blood a sign of lung cancer?

Is coughing up blood a sign of lung cancer?

Coughing up blood may be caused by lung cancer or tuberculosis.

1. Lung cancer:

Lung cancer is a common primary lung malignancy that originates from the bronchial mucosa or glands. According to tissue lesions, it can be divided into small cell carcinoma and non-small cell carcinoma. The cause of lung cancer is still unclear, mainly including smoking, occupational exposure, air pollution, ionizing radiation, diet and physical activity, genetics, etc. The clinical symptoms are mostly hidden, mainly manifested as cough, sputum, and can also manifest as coughing and bleeding. Generally, early detection, early diagnosis, and early treatment have a good prognosis.

2. Tuberculosis:

Pulmonary tuberculosis is a chronic infectious disease caused by infection with Mycobacterium tuberculosis. It is a common type of pulmonary tuberculosis, and those who excrete the bacteria are its important source of infection. After the disease occurs, symptoms such as weight loss and night sweats may occur, and it may also manifest as coughing and bleeding. Mycobacterium tuberculosis can be clearly diagnosed through X-rays, sputum and other examinations. After diagnosis, anti-tuberculosis treatment is required with drugs such as isoniazid and rifampicin.

It is recommended that patients should seek medical attention promptly and actively seek treatment when they experience discomfort, and not delay the disease. The use of drugs should be carried out under the guidance of a doctor, and not blindly.