Q: My child suddenly has a temperature of 37.4°C but seems fine. Is a fever starting?
- Myeongchan Kim, MD
- Apr 30
- 2 min read
Updated: Aug 4
Medically reviewed by Sang Hyun Ahn, MD
This post is a dramatization of a question and answer session experienced by our actual medical reviewers. Please note that this content is for informational purposes only and does not constitute medical advice. Always consult with a qualified healthcare professional for any health concerns or before making any decisions related to your health or treatment.
Question:
My child suddenly has a temperature of 37.4°C. They were completely fine during lunch and ate their dinner well without any issues. However, their body suddenly felt a bit hot to the touch, so I checked their temperature, and it read 37.4°C. Does this mean a fever is about to start? Have other parents experienced a similar situation?
Answer:
You must be worried because your child was eating and playing normally, but their temperature suddenly went up.
37.4°C is within the normal body temperature range (36.5-37.5°C), but it is slightly higher than usual. Please check if your child was in any of the following situations:
• Were they running around or moving actively?
• Were they wearing a lot of clothes or covered with a thick blanket?
• Was the measurement taken right after a bath?
What you can do right now:
1. Change them into lighter clothing
2. Have them drink cool water frequently
3. Measure the temperature again in 30 minutes to 1 hour
4. Observe the child's overall condition (mood, activity level)
When to go to the hospital or see a doctor:
The fever (38 °C or higher) lasts for 3 days or more.
Your child is unusually lethargic, very irritable, or has trouble staying awake.
There is difficulty breathing, persistent vomiting, or a complete refusal of fluids.
The temperature rises rapidly to high levels and your child shows obvious discomfort.
Many parents experience similar situations, and in most cases, the temperature rises temporarily and then returns to normal. Keep an eye on them and check their temperature 2-3 times overnight!
For extra peace of mind and clear guidance when tracking your child's symptoms, the FeverCoach app is always there to help.
