5 doctors weighed in:
At what temperature does a newborn baby have a "fever"?
5 doctors weighed in

Dr. Lisa Roberts
Pediatrics
4 doctors agree
In brief: 100.4 F
If a newborn infants under a month of age has a temperature of 100.
4 degrees f (or 38.0 degrees c), that is considered a fever. Babies under a month of age with a fever must be seen and evaluated right away. The best way to check for a fever is using a rectal thermometer. Oral, ear, and axillary (under the armpit) thermometers are not as accurate in a newborn baby.

In brief: 100.4 F
If a newborn infants under a month of age has a temperature of 100.
4 degrees f (or 38.0 degrees c), that is considered a fever. Babies under a month of age with a fever must be seen and evaluated right away. The best way to check for a fever is using a rectal thermometer. Oral, ear, and axillary (under the armpit) thermometers are not as accurate in a newborn baby.
Dr. Lisa Roberts
Dr. Lisa Roberts
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