No fever during the day and fever at night, may be environmental factors, drug causes, special diseases and so on.
1. Environmental factors: During the daytime, the amount of activity is relatively large, the body dissipates heat quickly, and the symptoms of a mild fever are not obvious. At night, when you sleep, you cover more bedding, and the fever symptoms are more obvious.
2. Drug reasons: most antipyretic drugs last 4 to 6 hours, if you take antipyretic drugs after meals during the day, most of the night sleep state may reappear when the fever.
3. Infectious diseases: for example, tuberculosis is prone to afternoon low fever, or night fever.
In addition, if the condition is not effectively treated during the day, it is also the cause of fever at night, with the disease as early as possible to the hospital for treatment.