Is a temperature of 37.3°C under the armpit considered a fever in children?
Generally speaking, whether a child's armpit temperature of 37.3°C constitutes a fever needs to be determined based on the specific circumstances. If there are no discomfort symptoms, it usually is not considered a fever. However, if related symptoms appear, it typically indicates a fever. If discomfort symptoms occur, prompt medical attention is recommended. Detailed analysis is as follows:

The normal armpit temperature range for children is generally between 36.0°C and 37.0°C; 37.3°C is slightly higher than normal. If the child has engaged in strenuous activity, cried intensely, eaten recently, or is overdressed before taking the temperature, it may cause a temporary increase in body temperature to 37.3°C. In such cases, if the child shows no other signs of discomfort, is in good spirits, and maintains normal eating and sleeping habits, the temperature will usually gradually return to normal after resting for a while, removing excess clothing, and drinking water appropriately. It is advisable to let the child rest for half an hour and then retake the temperature to closely monitor any changes.
If a child has an armpit temperature of 37.3°C along with symptoms such as coughing, runny nose, sore throat, fatigue, poor appetite, or diarrhea, there may be other underlying medical conditions. In such cases, prompt medical consultation is advised for examination and appropriate treatment measures.
When a child's temperature rises, parents should comprehensively consider the child's overall health condition and any accompanying symptoms before deciding on further actions.