Is a temperature of 37.8°C in a child considered low-grade fever or high fever?
Aug 30, 2022
Source: Cainiu Health
Dr. Xie Zixing
Introduction
A temperature of 37.8°C in a child is generally considered a low-grade fever. The normal axillary (underarm) temperature range for children is 36.2°C–37.2°C. A reading of 37.8°C may indicate fever, which could result from bacterial or viral infections, summer heat syndrome, intense physical activity, or excessive mental stress. If the temperature continues to rise, prompt medical evaluation is recommended.
A temperature of 37.8°C in a child is generally considered low-grade fever.
A child’s normal axillary (underarm) temperature typically ranges from 36.2°C to 37.2°C. If measured correctly and yielding a reading of 37.8°C, the child may be experiencing fever. Generally, temperatures above 37.5°C–38°C are classified as low-grade fever; 38°C–39°C as moderate fever; and 39°C–40°C as high fever. Thus, a temperature of 37.8°C falls within the low-grade fever range.
A temperature of 37.8°C in a child may result from an infectious cause—such as bacterial, viral, or mycoplasmal infection—leading to infectious low-grade fever. Alternatively, during summer, children—especially those with relatively weak constitutions—may develop summer-related low-grade fever due to immature thermoregulatory center function. Additionally, vigorous physical activity or excessive emotional stress can also induce physiological low-grade fever, with body temperature reaching 37.8°C.
Parents should closely monitor their child’s temperature fluctuations throughout the day. If the child’s temperature continues to rise or if the child exhibits poor mental status, prompt medical evaluation is recommended.
