Medical checkups can be done with a medical insurance card, which can only be used by the person holding the card, and not for other people. In modern society, health checkups are becoming more and more important, as they can reveal hidden health problems in the body and improve your health by changing your lifestyle according to the guidance of your doctor. Through medical checkups, checking blood sugar, blood lipids, blood pressure, liver function and kidney function can reveal very many problems, such as high fasting blood sugar, which can often lead to early screening for diabetes. If it is an electrocardiogram that shows insufficient blood supply to the heart muscle, it often indicates a heart problem. Tumor markers can screen for cancer, such as fetoprotein for liver cancer and carcinoembryonic antigen for intestinal cancer, and early detection of problems can solve problems early and keep the body healthy.