Three and a half years old armpit temperature of 37 degrees is normal. Parents usually need to strengthen the baby’s temperature monitoring, found abnormal timely consultation with the doctor, to avoid delaying the condition. The normal range of armpit temperature for a three and a half year old baby is 36-37.2 degrees, usually more than 37.3 degrees belongs to the category of fever, need to follow the doctor’s advice to give cooling treatment. 37 degrees belongs to the baby’s normal body temperature, parents should not be overly alarmed, in the case of not clear whether the body temperature is normal or not, you can consult a doctor or a professional, to avoid blindly making judgments. It is recommended that parents usually pay more attention to observe and monitor the temperature of the three and a half year old baby, more than the normal range of the baby should be taken to the doctor in a timely manner, in accordance with the doctor’s advice to give symptomatic adjustment or treatment, to help the baby as soon as possible to improve the symptoms.