The anal temperature of normal newborns is between 36:2 ~ 37:8℃, and the axillary temperature is slightly lower than the anal temperature, between 36 ~ 37℃. The newborn's axillary temperature exceeds 37℃ or anal temperature exceeds 37.8℃ for fever. This article will introduce you to the related knowledge of neonatal fever.

Classification of fever

According to the level of body temperature, it is generally divided into low fever, between 37.5-38℃ under the armpit; High fever, underarm temperature above 39.5℃; Ultra-high fever, above 40.5℃ under the armpit. Below 35℃ means that the body temperature does not rise.

The cause of fever

Fever and hypothermia, for newborns, mostly suggest that they have diseases. However, it is also possible that the newborn's thermoregulation function is not perfect, and it is affected by the environmental temperature, which leads to the imbalance of heat production and heat dissipation, resulting in abnormal body temperature. The difference between diseases and physiological phenomena should be combined with the comprehensive judgment of newborn's breathing, complexion, crying, sleep, breastfeeding and defecation.

Fever is not necessarily the only symptom.

Fever is the most easily found and noticed symptom by parents. However, neonatal fever is only one of the symptoms of the disease, not the only symptom. The degree of fever does not fully explain the severity of the disease, and hypothermia may also be a precursor to illness. Therefore, parents should not judge whether a newborn is sick only by whether it has a fever. Not eating milk, not crying and drowsiness are often the early symptoms of various diseases.