What is the difference between preventive care and physical examination

Many people often confuse preventive health care with physical examination. In fact, the core difference between the two is that they are completely different in positioning - physical examination is to "passively detect diseases", while preventive health care is to "actively prevent diseases before they occur". They are two links in the health management chain that are complementary but never overlapping.

Speaking of it, the 32-year-old Internet operator I met for consultation last week is a typical example. He does the regular physical examination at his workplace every year on time, and all indicators are within the reference range. However, in the past six months, he has been feeling heavy all over, his shoulders and neck are so stiff that he can’t lift himself up, and he can’t fall asleep until he lies in bed for two hours. When he came with the physical examination report, he still looked puzzled: "There are no problems in my physical examination, so why do I feel uncomfortable every day?"

In fact, this is a misunderstanding of the role of physical examination. Physical examination is more like taking an "instant snapshot" of your body. All indicators reflect your physical state at the moment of examination. The core goal is to screen for clinical lesions that have already appeared. Only when the indicators reach the critical value for disease diagnosis will a red warning be displayed. For example, if your fasting blood sugar reaches 6.1mmol/L, a rising arrow will be marked on the report. However, if your blood sugar has been hovering between 5.8 and 5.9 for six months in a row, the physical examination report will at most mention "a low-sugar diet is recommended." No one will ask you whether you drink iced milk tea every day or lie on the sofa after dinner to check your phone, let alone make a targeted adjustment plan for you.

The logic of preventive care is completely different. It does not focus on the value of a certain physical examination, but on the risk points that may induce diseases in your entire life. Let’s talk about the critical situation of blood sugar just now. When doing preventive care, we will first compare your physical examination data in the past three years for trend comparison, and then make a comprehensive assessment based on your eating habits, exercise frequency, and family history. We will even set your weekly sugar intake and half-hour exercise plan after meals. Follow up for three months and then review the changes in indicators. The purpose is to bring your blood sugar back to the normal range and never let it touch the critical line of 6.1.

Some people may say, I spend tens of thousands every year on the most comprehensive high-end physical examination, including PET-CT and tumor marker screening, but do I still need preventive care? I met a 40-year-old private company boss who thought this way before. He spends more than 20,000 yuan on private physical examinations every year. Last year, the physical examination revealed that the lung nodules were carcinoma in situ. It would not be a big deal if they were removed in time. However, he had smoked for 20 years and reported cancer every time he had physical examinations. The report only said, "The lung texture is thickened, and it is recommended to reduce smoking." No one watched him for intervention for smoking addiction, and no one arranged for him regular lung care and risk follow-up. In the end, the problem was not discovered until the nodules grew out, and he suffered an operation for no reason.

Of course, many people think that preventive health care is an IQ tax and is not as reliable as a regular physical examination. This idea is actually understandable. After all, there are too many organizations on the market selling sky-high price health care products under the banner of "preventive health care", which has ruined the reputation of the entire industry. But serious clinical-level preventive care is originally connected with physical examination data. For example, if you are positive for Helicobacter pylori in the physical examination, the preventive care plan will simultaneously provide you with family meal sharing guidance and tableware disinfection suggestions. After eradication treatment, you will be regularly reminded to review and adjust your diet to nourish your stomach. You will not be left alone after killing the bacteria, only to relapse due to family cross-infection.

To put it bluntly, if we compare maintaining the body to maintaining a car, a physical examination is an annual car inspection to find out what is broken and should be repaired or replaced. Preventive care is routine maintenance, such as changing the oil regularly, checking tire pressure, and not adding low-quality oil. If an engine failure is discovered during the car inspection and an overhaul is required, the money spent will be much more than usual maintenance, right?