Normal body temperature has a relatively stable range, but it is not constant. The oral temperature of normal people is 36.2℃ ~ 37.2℃, the axillary temperature is 0.2℃ ~ 0.5℃ lower than the oral temperature, and the rectal temperature is 0.2℃ ~ 0.6℃ higher than the oral temperature. In a day, the body temperature is the lowest at 2-5 am and the highest at 5-7 pm, but the temperature difference within a day should be less than 0.8℃. In addition, the body temperature of women is generally about 0.35℃ higher than that of men. Women's body temperature will also change slightly during menstruation.
So it can be considered that 37.2 degrees Celsius is normal.