The baby does not have a fever during the day, but the fever at night may be related to the immaturity of the thermoregulatory center, infectious factors, non-infectious factors and so on.
1. Thermoregulation center development immaturity: the baby due to the age of small, thermoregulation center development is immature, especially in the sleep, caused by the hypothalamus thermoregulation center is not stable, resulting in body temperature is not under control, there may be a baby during the day does not burn, the night burns the situation.
2. Infectious factors: the baby due to the age of resistance is relatively poor, easy to be infected by viruses, bacteria and atypical pathogens, especially viral infections, stimulate the thermoregulatory center, paroxysmal fever, may lead to daytime fever, night fever.
3. Non-infectious factors: for example, some babies suffer from Kawasaki disease, which may cause babies to have no fever during the day and fever at night.
Baby daytime fever, night fever may also be rheumatic fever, quilt cover is too thick to dissipate heat and other causes, it is recommended to go to the hospital for examination, to clarify the cause of the disease, and active symptomatic treatment.