The body temperature is different in different parts of the human body, and it is different every morning and evening: in the biological rhythm of a day, the body temperature is the lowest at 2-5 am and the highest at 5-7 pm, but the difference within a day should be less than 65438 0℃. Women's body temperature is also related to menstruation. Therefore, human body temperature has a relatively stable range, but it is not constant. Adults with normal body temperature The oral temperature of normal people is 36.5 ~ 37.4℃, the axillary temperature is 0.3 ~ 0.6℃ lower than the oral temperature, and the rectal temperature (also known as anal temperature) is 0.3 ~ 0.5℃ higher than the oral temperature.