TMT physical examination refers to infrared thermography, which is used as an important complementary examination tool in today’s medicine. It mainly takes advantage of the fact that the body temperature distribution has certain characteristics and patterns, producing different thermal field distributions in different parts of the body. If a disease or functional abnormality occurs in the body, the temperature of the area will change and, depending on the increase in temperature, may indicate the presence of inflammation or tumors. If the temperature decreases, it may indicate diseases such as vasculitis or atherosclerosis. Through the different temperature changes, the signals are collected and analyzed using the device, and conclusions are drawn through the judgment of an experienced physician.