The term terminal illness is not scientific and does not include cancer. With the progress of medical oncology disciplines, it is possible for some common cancers to achieve clinical cure after standardized treatment. Cancer usually refers to malignant tumors, and common cancers include lung cancer, liver cancer, pancreatic cancer, colon cancer and so on. Cancer is prone to lymph node metastasis or blood line metastasis, which leads to poor prognosis of patients. However, surgical resection is given in the early stage of cancer, and chemotherapy or radiotherapy is given in the progression stage, which is possible to achieve clinical cure for some cancers. For cancer, early detection, early diagnosis and early treatment are particularly important for the treatment effect and prognosis of patients, so it is recommended to have regular medical checkups and regular cancer screening, which can help in the early detection of cancer and ensure a good prognosis of the disease.