Tumors are scary, but there is nothing to fear, they can be prevented, controlled and treated. It is recommended that people with family history of tumor who are at high risk should have a medical checkup once every six months. Although tumors are scary, there is no need to be afraid, they are still preventable, controllable and treatable. Unfortunately, many people are afraid of cancer and are not willing to undergo checkups, coupled with the fact that tumors have little symptoms at the beginning, so many people are already in the middle and late stages when they are diagnosed. Why are so many people reluctant to go for checkups? People in urban areas are more open-minded, and those who belong to high-risk groups tend to pay much attention to medical checkups, but in rural areas, it is different. Many departments go to the countryside to screen farmers for a variety of chronic diseases, screening programs, farmers are resistant to the psychological. In addition, if they are found to be suffering from a certain disease in such a situation, villagers are worried about the impact on themselves, and if they know about it in the countryside, they are afraid that others will gossip. From this point of view, many farmers would rather have a disease than go to the hospital for blood screening. Who are more in need of cancer screening? People between 20 and 40 years old Women should pay attention to breast and uterine examinations. Women should have cervical cytology examination once a year after having sex to screen for cervical cancer. This is the most effective and easiest way to detect cervical cancer at an early stage. People between 40 and 50 years old Middle-aged people after 40 years old, especially those who smoke or live or work in poor air quality, should have annual chest X-ray or CT screening, which has positive significance for early detection of lung cancer. Anal finger examination is helpful for early detection of colorectal cancer or prostate lesions. Hepatitis B virus carriers should have their serum fetoprotein checked regularly. People who drink heavily or enjoy spicy and other irritating foods should have regular examinations of the oropharynx. In addition, screening for gastric cancer, including pepsin test, H. pylori test and related imaging tests, should also be performed. Women should pay attention to breast and uterine examinations, and have at least one breast physical examination per year, including manual examination, ultrasound or mammogram. Have a cervical smear once a year and a gynecological examination every 3 years. People over 50 years old People with colon and rectal polyps, family history of colon cancer, history of diarrhea, constipation and blood in stool should preferably have a colonoscopy to screen for colon lesions, and those who are not suitable for colonoscopy can switch to CT examination. Men should also add a prostate-specific antigen test to their physical examination for early detection of prostate cancer. In addition, people over 50 years old are at high risk for tumor development and should be alert to the occurrence of various tumors.