Rectal Temperature
A rectal temperature is taken by placing a thermometer in baby’s bottom. This method provides the most accurate reading, but it should be done only when advised by your baby’s doctor. Use the steps on this handout as a guide.
Getting the Thermometer Ready
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Be sure to use a thermometer that is for rectal use.
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Wipe the thermometer with warm, soapy water, then wipe with clear water. Wipe dry or let the thermometer air-dry.
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Put a bit of petroleum jelly or water-based lubricant on the tip.
Positioning Your Baby
Use the position that works best for you.
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Put baby on his or her back on a firm surface. Hold baby’s ankles and lift both legs, as if changing a diaper.
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Or place baby face down across your lap. Use one hand to part baby’s buttocks.
Taking the Temperature
Follow the directions for using your specific digital thermometer.
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Gently slip the tip of the thermometer into the rectum (the opening where bowel movements leave baby’s body), no further than 1/4 to 1/2 inch.
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Hold the thermometer in place until it beeps that it is ready. Slide the thermometer out. Read the temperature on the digital display.
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Before putting the thermometer away, clean it with soap and warm water.
Date Last Reviewed:
1/15/2007
Date Last Modified:
10/1/2005