The Global Lung Cancer Screening Market Size was US$ 15.4 Billion in 2021. Lung cancer is the ultimate cause of cancer death among both women and men globally. Thus, lung cancer screening aims to detect lung cancer before it has spread; this can help find cancer early. However, the only recommended screening test for lung cancer is low-dose computed tomography (also called a low-dose C.T. scan, or LDCT), Chest x-ray, and Sputum cytology. Screening with LDCT scans has been conferred to decrease the risk of dying from lung cancer in heavy smokers. Screening by chest x-rays and sputum cytology does not reduce the risk of dying of lung cancer. Furthermore, lung cancer screening is a method used to detect lung cancer in otherwise healthy people with a high risk of lung cancer.