Relationship between Tongue Temperature Estimated by Infrared Thermography, Tongue Color, and Cold-Heat Pathological Patterns: A Retrospective Chart Review Study

Figure 3

Left: This patient showed lower scores for cold factor 2 (8 points) and heat factor 2 (6 points). The temperatures of , , and (33.4°C, 33.8°C, and 35.0°C, respectively) were higher than average (: 32.2°C, : 33.0°C, and : 34.1°C). Middle: This patient recorded higher scores for both cold factor 2 (13 points) and heat factor 2 (8 points). The temperatures at , , and were lower than average (32.0°C, 33.1°C, and 34.0°C). Right: The tongue temperature at R_A (28.8°C) was markedly lower than that in the other participants. Moreover, the temperatures at and were lower than average (30.6°C and 31.5°C, respectively). The patient showed higher scores for cold factor 2 (14 points). : R₃; : R₀, R₁, R₂, and R₄; : R₅ and R₆. Note that all colors were adjusted using the same thermographic scale, which is shown on the rightmost side of the figure.