Why does the body feel hot while the head does not, and what should be done about it?

Body fever with a normal-temperature head may be caused by physiological factors, but it could also occur during the rising phase of body temperature or due to low-grade fever. The specific analysis is as follows:

I. Physiological Factors

In infants and young children, incomplete development of the nervous system and poor peripheral blood circulation may lead to the phenomenon of body fever while the head remains cool. Monitor the child's body temperature and provide an appropriate amount of warm water. Usually, no special treatment is required.

II. Pathological Factors

1. Rising Phase of Body Temperature

This may occur during the initial stage when body temperature begins to rise. At this time, the body may feel hot while the head does not, because the blood vessels in the head are constricted and the temperature has not yet continuously increased. This is a normal physiological phenomenon and does not require specific treatment.

2. Low-Grade Fever

The body may be experiencing a mild (low-grade) fever. Since the head is exposed to the external environment, some heat is dissipated, resulting in a relatively lower temperature in the head. Continuous monitoring is recommended. If body temperature continues to rise, physical cooling methods such as alcohol wipes or tepid water baths may be used to reduce fever.

Besides the above causes, autonomic nervous system dysfunction, upper respiratory tract infection, scleroderma, or systemic lupus erythematosus cannot be ruled out as potential underlying reasons. Closely monitor body temperature; if it exceeds 38.5°C, oral administration of ibuprofen capsules or acetaminophen tablets can be used for fever reduction.