1. Causes and symptoms of baby fever: Baby fever means that the body temperature exceeds the normal range, usually above 38°C. Common causes include infectious diseases such as colds, flu, laryngitis, and pneumonia, or low-grade fever caused by tooth growth. In addition to rising body temperature, babies may also experience discomfort symptoms such as headache, loss of appetite, and drowsiness. 2. How to correctly measure the baby\’s temperature. It is very important to correctly measure the baby\’s temperature, which can help the doctor determine whether treatment measures are needed. Usually an electronic thermometer or a mercury thermometer is used for measurement. When using an electronic thermometer, the probe should be placed in the armpit