What is considered a high temperature for a 5 month old baby?

Answer 1

For a 5-month-old baby, a high temperature (fever) is typically considered to be:

🌡️ 100.4°F (38°C) or higher when measured rectally, which is the most accurate method for infants.

🚨 When to Be Concerned:

You should contact a pediatrician immediately if:

Your baby is younger than 3 months and has any fever.

Your 5-month-old has a temperature of 100.4°F (38°C) or higher and:

Is unusually sleepy, irritable, or unresponsive.

Refuses to eat or drink.

Has difficulty breathing.

Shows signs of dehydration (fewer wet diapers, dry mouth).

Has a rash or seizure.

✅ What to Do:

Use an infant rectal thermometer for accuracy.

Keep baby hydrated.

Dress them in light clothing.

Monitor behavior, not just the number — lethargy or irritability can be important signs.

Answer 2

A high temperature for a 5-month-old baby is generally considered to be 100.4°F (38°C) or higher when measured rectally. If a baby has a fever, especially if it persists for more than a couple of days or is accompanied by other concerning symptoms, it is important to consult a pediatrician. Always seek medical advice if you are unsure about your baby's health.