We examined the changes in skin temperature before and after application of heat to abdominal regions of healthy volunteers. Eight healthy female subjects with no past history of disease were selected for this study. Time-dependent changes in skin temperature of the abdominal region were measured after 10, 20, and 30 min of heat stimulation using a digital infrared thermographic imaging device. Skin temperatures in the abdominal region significantly increased in a time-dependent manner after application of heat. In the resting state, with no application of heat, the body water and thermography were significantly greater in the trunk region compared with the lower limbs, whereas the impedance was significantly greater in both lower limbs compared with the trunk region. After application of a hot pack for 30 min, the thermography was significantly changed in the trunk region compared with both lower limbs. Similarly, as the duration of heat application increased, the thermography was significantly increased in both lower limbs compared with the trunk region. These results suggest that the effects of heat application on the distribution and variation of skin temperature may differ by body region.