Most types of Cancer 4 stages: stage I (1) to IV (4). Some cancers also have a stage 0 (zero).Patients diagnosed in stage 4 who decide against treatment live an average of six months. In contrast, those diagnosed with stage 1A disease who elect no treatment live an average of two years. Mesothelioma survival without treatment depends on cancer stage, overall health and tumor growth rates.
Can cancer be detected by blood test Most blood tests aren't used on their own to diagnose cancer. But they can provide clues that may lead your health care team to make the diagnosis. For most types of cancer, a procedure to remove a sample of cells for testing is often needed to be sure.