Pyrexia refers to the dysfunction of body temperature regulation caused by prolonged exposure to high temperature environment, excessive accumulation of heat in the body which cannot be dispersed, thus triggering the dysfunction of nerve and circulatory systems, which is the most serious type of severe heat stroke and seriously threatens the life.
Heat stroke is categorized into exertional and non-exertional, the pathogenesis of the former is mainly endogenous excessive heat production; the latter is mainly caused by thermoregulatory dysfunction.
Exertional pyrexia is mainly caused by excessive heat production, mostly occurring in high temperature environments, prolonged strenuous exercise or heavy manual labor after a few hours. Non-labor pyrexia is mainly in the high environmental temperature, body temperature regulation dysfunction caused by heat dissipation caused by the reduction, preferably in the elderly living in poor ventilation environment, such as the frail.
The main characteristics of pyrexia are high fever with mental disorder, liver and kidney organ failure. When the body temperature is too high (>42℃), it can have a direct damaging effect on the cells of the body, leading to multi-organ dysfunction or failure.
If there is any discomfort, it is recommended to seek medical advice and treatment in time.