It is generally believed that regular annual physical examinations can effectively prevent and detect various diseases, especially cancer, which is feared. However, in reality, there is a confusing and worrying situation: some people are suddenly diagnosed with cancer even though their annual physical examination results are normal. Why is this? In fact, the focus of physical examination items for different age groups is: The occurrence and development of cancer is a complex and gradual process. In the early stages of cancer, the tumor may be very small or may not yet produce abnormal indicators that can be detected by existing detection methods. For example, some early gastrointestinal tumors may not cause obvious changes in the gastrointestinal mucosa, and routine blood tests and gastrointestinal endoscopic examinations may not be detected. Some cancers may not have obvious symptoms in the early stages, or the symptoms may be very mild and easily ignored. For example, early pancreatic cancer may only cause occasional upper abdominal pain and indigestion, which can easily be mistaken for common gastrointestinal problems. Normal annual physical examination results do not mean that you can rest easy. For the prevention and early detection of cancer, we need to remain vigilant, learn more health knowledge, and take more scientific and comprehensive preventive measures. |
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