37.2℃ refers to 37.2 degrees Celsius, while "发烧" means having a fever. For newborns, a temperature of 37.2℃ is not considered a fever and does not exceed the normal range of body temperature.

Under normal circumstances, a temperature measured under the armpit ranging from 36℃ to 37℃ is considered within the normal range. When measuring temperature orally, a range of 36.2℃ to 37.3℃ is considered normal, and when measuring rectal temperature, a range of 36.2℃ to 37.8℃ is considered normal. Due to the instability of the newborn's temperature regulation center and their rapid metabolism, various factors such as high ambient temperatures, excessive clothing, recent physical activity, or feeding can lead to an increase in body temperature. Therefore, a body temperature of 37.2℃ in a newborn is not considered a fever and falls within the normal range.

If a newborn's temperature remains consistently elevated and symptoms such as coughing, lethargy, refusal to feed, or excessive sleepiness occur, it may be a sign of fever. Immediate medical attention should be sought, and appropriate treatment should be administered based on the severity of the illness.