11 doctors weighed in:

How high should my babies fever be before I call the doctor?

11 doctors weighed in
Dr. Willa Terry
Pediatrics
3 doctors agree

In brief: 100.4F or 38C

Babies younger than 2 months manifest signs and symptoms of serious infections (sepsis) in a more subtle fashion than older children.
It is important to take your young infant to the doctor if he or she is feeding poorly, is sleepier than usual (lethargic) has an unusual rash, or has an elevated temp – even if that is the only symptom.

In brief: 100.4F or 38C

Babies younger than 2 months manifest signs and symptoms of serious infections (sepsis) in a more subtle fashion than older children.
It is important to take your young infant to the doctor if he or she is feeding poorly, is sleepier than usual (lethargic) has an unusual rash, or has an elevated temp – even if that is the only symptom.
Dr. Willa Terry
Dr. Willa Terry
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1 comment
Dr. James Ferguson
We worry abt germs from delivery that might emerge & cause pbs. After 2m, enough time has passed that delivery exposures are less an issue & the urgency of a Dr eval decreases when temp occurs.
Dr. Julia Sundel
Pediatrics
3 doctors agree

In brief: 100.4

Call your doctor if if your baby is less than 6 weeks old and has a temp of 100.
4 or higher. If your baby is eating fine, sleeping well, looks comfortable and is older than 3 months, a low grade fever (up to 101) is ok.

In brief: 100.4

Call your doctor if if your baby is less than 6 weeks old and has a temp of 100.
4 or higher. If your baby is eating fine, sleeping well, looks comfortable and is older than 3 months, a low grade fever (up to 101) is ok.
Dr. Julia Sundel
Dr. Julia Sundel
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Dr. Lisa Roberts
Pediatrics
1 doctor agrees

In brief: 100.4 for a newborn

You should consult your doctor if your newborn has a temperature of 100.
4 degrees fahrenheit (or 38.0 celsius) or higher. This is particularly important in babies under one month of age.

In brief: 100.4 for a newborn

You should consult your doctor if your newborn has a temperature of 100.
4 degrees fahrenheit (or 38.0 celsius) or higher. This is particularly important in babies under one month of age.
Dr. Lisa Roberts
Dr. Lisa Roberts
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Dr. Laura Webb
Pediatrics

In brief: 100.4

If your baby is less than 3 months, otherwise a low grade fever is ok to manage at home as long as you can keep your baby well hydrated and they are breathing ok.
If the number of wet diapers decreases significantly or your baby seems to have difficulty breathing or is acting strange to you see your pediatrician. A fever helps fight illness, so use tylenol (acetaminophen) to treat discomfort, but not the fever.

In brief: 100.4

If your baby is less than 3 months, otherwise a low grade fever is ok to manage at home as long as you can keep your baby well hydrated and they are breathing ok.
If the number of wet diapers decreases significantly or your baby seems to have difficulty breathing or is acting strange to you see your pediatrician. A fever helps fight illness, so use tylenol (acetaminophen) to treat discomfort, but not the fever.
Dr. Laura Webb
Dr. Laura Webb
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