The normal body temperature is between 36 and 37°C, but this can vary from person to person and from hour to hour. Temperatures between 37.5°C and 38.2°C mark a low-grade fever. A high-grade fever is present when the oral temperature is above 38.2°C. the rectal or tympanic (ear) temperature is higher than 38°C.
What temperature do you go to the hospital?
Indeed, some studies show that intervening to reduce a fever may prolong the infection, but doctors disagree on this. According to an article in the Mayo Clinic, you should call a doctor if: Your temperature climbs above 103 degrees.
When a temperature is too high?
A simple cold or other viral infection can sometimes cause a rather high fever (in the 102°–104°F/38.9°–40°C range), but this doesn't usually mean there's a serious problem. In fact, a serious infection, especially in infants, might cause no fever or even a low body temperature (below 97°F or 36.1°C).