Is 37.3°C considered a fever?

Generally speaking, a fever refers to an elevated body temperature. Whether 37.3°C constitutes a fever depends on the method of measurement and specific circumstances. If the temperature is measured orally or under the armpit, 37.3°C usually indicates a fever. However, if measured rectally, 37.3°C is generally considered within the normal temperature range. Detailed explanations are as follows:

For most adults, the normal oral or axillary temperature range is 36–37.2°C. Therefore, if the temperature is measured orally or under the armpit, 37.3°C typically indicates the presence of a fever. If this temperature is accompanied by other symptoms such as fever, cough, runny nose, gastrointestinal discomfort, headache, fatigue, loss of appetite, or weight loss, then 37.3°C is more likely to be considered a fever.

However, if the temperature is measured rectally, 37.3°C is generally considered within the normal temperature range. Because rectal temperature tends to be slightly higher than oral or axillary temperature, 37.3°C at this measurement site does not indicate a fever.

It is generally recommended to drink plenty of water to accelerate metabolism and reduce body temperature. Additionally, maintain a light diet, open windows for ventilation to ensure fresh air circulation, and ensure sufficient rest while avoiding fatigue.