For cancers of the stomach, breast, cervix, etc., there are diagnostic methods to detect the disease at an early stage. However, many cases of early stage lung cancer have no obvious symptoms. There are also many cases that are not detected at an early stage based on the results of X-rays or routine screening tests. So can lung cancer be diagnosed at an early stage?

To screen, diagnose and treat all types of cancer, especially lung cancer, the quantitative test Cyfra 21-1 is necessary. In addition to the quantitative test of Cyfra 21-1, patients need ultrasound, X-ray, CT scan... to determine the specific condition and level of the disease.