Infrared thermal imaging technology is applied in medicine and is called thermal image. Human beings are warm-blooded animals, and the human body is a natural source of biological infrared radiation, which continuously scatters infrared radiation energy into the surrounding space. When the human body is sick or physiologically altered, the systemic or local thermal balance is disrupted or affected, and clinically manifests as an increase and decrease in tissue temperature. At present, the widely used infrared thermal imaging tests various diseases, which proves that infrared thermal imaging technology can meet the clinical needs, especially in the treatment of TCM syndrome differentiation.

According to the appearance characteristics of infrared thermography, combined with the nature of clinical syndromes of Chinese and Western medicine, the following syndrome types can be given:

1 The normal healthy group showed a more uniform pink and light yellow-green infrared thermogram, and no obvious isothermal area;

2 The affected area of the wet and cold group showed a large dark blue cold area, and the western medicine was mostly wet and cold. The traditional Chinese medicine was more common in patients with kidney deficiency and cold syndrome.

3 The pain zone of the blood circulation disorder group showed a large blue cold zone, and Chinese medicine was more common in patients with cold and dampness syndrome;

4 The painful area of the sterile inflammation group showed a large dark red hot zone. This type of Western medicine is mostly aseptic inflammation. Traditional Chinese medicine is more common in patients with evil syndrome.

5 The pain map of the microcirculatory disorder group was scattered in the stellate red sub-hot zone, and the Chinese medicine was more common in the evil and liver and lung, and qi stagnation and blood stasis;

6 mixed group pain area showed flaky sub-cold and sub-heat red-blue see-up area, the average temperature in high temperature area was close to microcirculation disorder group, the average temperature in low temperature area was close to blood circulation disorder group, western medicine mostly local blood circulation disorder and local sterile inflammation Coexistence (mixed type), Chinese medicine is more common in patients with spleen and limb syndrome.

The difference in the appearance of the isothermal zones of the above thermograms is very obvious.

The pain of diseases other than human trauma often involves bone, joint, muscle, skin, blood vessels and tissues. However, the pain of various diseases is related to the normal operation of blood circulation. The blood flow in blood vessels, the subtle changes of superficial tissues and organs will change the local temperature. Infrared thermal imaging technology can accurately measure the subtle changes, and draw the thermal images of different changes, and then study the mechanism of disease observation. Especially, the pathogenesis of pain diseases is complex. The pathogenesis should be based on the biological state and the changing law of the body and the nature of local tissue lesions. The role of inflammatory factors in inflammation causes local vasodilation, increased blood flow, and increased temperature. Thermograph shows the hyperthermia of inflammation area. Sympathetic nerve-dominated surface vasoconstriction or other factors lead to blood flow slowdown and local tissue temperature reduction; disease injury leads to tissue adhesion, fibrosis, local vascular and microvascular injury or contraction, resulting in blood perfusion reduction and local temperature reduction. Infrared thermography can sensitively capture the changes of information and accurately show the different characteristics of the disease. Elephant. Unusual pain, stasis and heat, dampness and cold, indicating that the size of temperature difference can reflect the body blood stasis and blood flow, the degree of cold and heat, the greater the temperature difference, the more severe the degree of pain, thermography can give specific indicators. Therefore, infrared thermal imaging can be used as an objective index of clinical differentiation of symptoms and signs in both visual images and data demonstration, providing reliable basis for determining the correct treatment plan, avoiding unnecessary harm to patients caused by X-ray, and making up for the disadvantages of CT and MRI. To study the application of infrared thermal imaging technology in many kinds of pain diseases has an important guiding role and clinical significance in clinical follow-up, observation, early prevention and treatment of diseases.