When human cells, tissues or organs are in different states, their metabolic activities and thermal radiation are different. If an organization is in a state of chronic disease, insufficient blood supply or local necrosis, its metabolic heat intensity is low; When it is on the high side, it is mostly manifested as pain, hyperplasia, inflammation and tumor. TMT medical infrared thermal imager can receive the thermal radiation generated by human cell metabolism very sensitively (less than 0.5 degrees Celsius), and determine the distribution, depth, intensity, shape and trend of abnormal heat sources in the body through unique imaging and "from outside to inside" chromatography technology, thus comprehensively, truly and dynamically reflecting the overall health status expressed by human metabolic heat. Its safety, sensitivity and comprehensiveness have become excellent and comprehensive characteristics of modern clinical medicine.