Experts predict that one in every 4.5 people in the world will have cancer by 2050, but the good news is that at least 40% of cancers can be prevented because it takes up to 10, 20 or more years for a healthy cell to develop into a malignant tumor, and precancerous lesions are reversible. Another good news is that if detected early, premalignant tumors can be prevented. Another good news is that at least one third of cancers can be cured if detected early and treated aggressively. Early stage cancers can be resected 100% radically and have a long-term survival rate of 90%, while 10% of patients will die of metastases. Intermediate stage cancer is surgically useful, and lymph node metastasis is limited to 2 stations, which can still be surgically curable. The prognosis is affected by the malignancy degree of the tumor, anatomical site and patient’s physical condition, and the general cure rate is about 50%. The curability of cancer depends largely on whether it is detected early. In addition to the symptoms that can be felt through the organism itself, earlier and more scientific examination methods also give us a better right to know – through such examination means as cervical exfoliated cells (smear examination), mammogram (molybdenum target photography), fecal occult blood, PET cancer genetic screening, etc., human beings can preempt and rewrite their health fate. Lung cancer is the number one malignant tumor in the world, and it is also the TOP1 most prevalent tumor in China. Clinical experts have found that one in three tumor patients suffer from lung cancer. The reason why lung cancer is the “most deadly tumor” is that it is usually difficult to be detected at an early stage. Symptoms such as irritating cough, blood in the sputum or coughing up blood, chest pain and shortness of breath are often present. In recent years, medical doctors have been searching for effective treatments for lung cancer. With the advancement of medical imaging technology, the method of low-dose spiral CT scan of the chest is used to help detect early lung cancer in time. If early stage lung cancer is treated by surgery in time, the cure rate has reached over 65-85%.