A child’s normal axillary body temperature is 36-37.2 degrees Celsius. If the axillary body temperature reaches 37.5 degrees Celsius, it can be considered as fever. However, the normal body temperature of each child is not absolute, it is related to growth and development, living environment, clothing and diet, so it needs to be analyzed on a case-by-case basis. If your child’s body temperature rises to 37.5 degrees Celsius due to eating, excessive crying, high activity or indoor temperature, or wearing thick clothing that does not dissipate heat well, parents should not be overly nervous and should take the temperature regularly and observe it. If the temperature decreases after changing the above factors, it can be determined that it is not considered a fever. If the above factors are ruled out and the child is not in good spirits, the fever should be considered to be low and needs to be treated promptly to reduce fever. However, at this time it is not recommended to take antipyretic drugs, it is recommended to take physical antipyretic measures, using warm water to wipe the back of the child’s neck, palms, feet, armpits and other parts to play a better heat dissipation. If the symptoms of low-grade fever are persistent or persistently high, you must go to the pediatrician of the hospital as soon as possible to avoid delaying treatment and leading to serious illness.