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Pregnancy & ChildbirthWellness & PreventionTreatment & Care

Baby Care: Taking a Temperature

Normal ranges in body temperature vary depending on the amount of activity, emotional stress, type of clothing worn, and temperature of the environment. You can use either a digital or ear thermometer at any age to take your baby’s temperature. Do not use mercury glass thermometers. Follow the manufacturer’s instructions for use and care of whichever thermometer you choose.

When reporting fever, always tell the doctor what part of the body was used to take the temperature and the exact thermometer reading.

The axillary (armpit) method is recommended for children from birth to 4 years.

Hold the thermometer snugly in the armpit making sure the bulb is completely covered between your baby’s arm and side.

Follow manufacturer’s instructions for use of digital type thermometers.

The rectal method may be used in children between the ages of 6 months and 5 years.

Check with your pediatrician before taking a rectal temperature.

Moisten the end of the thermometer with a water soluble lubricant.

Place your baby on his stomach and across your lap. Spread the buttocks with one hand to expose the anal opening.

Keep your arm along baby’s back or have another person help you hold the baby so he won’t move.

Insert thermometer, slowly and gently, just far enough for the bulb to pass the anal sphincter (muscle). This is about 1/2 inch.

After temperature is taken, remove the thermometer gently in a straight line and read it.

Rectal temperatures are slightly higher than axillary (armpit) temperatures.

Follow manufacturer’s instructions for use of digital type thermometers.