Fever in half-year-old babies usually refers to a temperature of more than 37.5 ℃, is more common, can be seen in respiratory tract infections, diarrhea disease, intracranial infections and other diseases, need to clarify the cause of the disease and then targeted treatment. For 6-month-old baby fever, usually refers to the correct measurement of axillary body temperature over 37.5 ℃, is more common symptoms. Elevated body temperature may cause generalized discomfort, increased respiration and heart rate, etc., and should be treated appropriately to reduce fever, such as the use of physical cooling or the use of antipyretic medication (e.g., acetaminophen). Fever can be seen in a variety of diseases, such as acute upper respiratory tract infections, fever can occur, accompanied by runny nose and other symptoms, can also be seen in diarrhea disease, in addition to the above symptoms, diarrhea and vomiting can occur. In urinary tract infections, it may only show no fever, urinary tract irritation signs such as painful urination are not obvious. In more serious diseases such as intracranial infections, fever may also be present, often accompanied by depression and convulsions. Therefore, it is recommended to actively consult a specialist to determine the cause of the disease and to treat it.