A temperature of 37.1°C in adults is not considered feverish, and there are usually three locations where temperature is measured, with specific temperatures varying. During routine axillary thermometry, the basal body temperature is 36.0-37.3°C. In regular intraoral thermometry, the basal body temperature is 35.8-37.1℃. In anal thermometry, the basal body temperature is 36.2-37.5°C. These are all normal, so an adult body temperature of 37.1°C is not considered feverish. However, if the temperature is located at 37.1℃ for a long time, it can be regarded as a person with high basal body temperature, and it is recommended to go to the hospital for routine blood analysis and treatment. If the blood test does not show any abnormality, just observe the situation.