Bloodshot sputum
For young people, blood in the sputum may be caused by lung diseases such as bronchitis, pneumonia, bronchiectasis, and tuberculosis. But if a person over the age of 40 develops blood in their sputum, they should be wary of lung cancer. Should go to the hospital in time for x-ray chest examination and sputum exfoliation cytology examination. These two methods are simple, economic, less painful, and the positive rate is high.
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