Hedgehog Baby Note
Every bit of your child's growth matters
A Korean-first parenting information site covering development, growth, health checkups, and play for children 0–60 months old.
What works in English today
We translate and review pages gradually, so English and Korean are not yet at parity.
Korean only for now
- Today's Note dashboard
- Development observation checklists
- Recording your own growth measurements
- The 72 play activities and the fun features
These tools are currently only available in Korean. Links marked “(Korean)” switch languages.
Privacy
What the Korean site offers
Each card notes whether that tool is usable in English today or still Korean-only.
Age-in-months calculator
Calculates exact age in months from the calendar and tells you how long until the next official developmental milestone.
Development observation
A checklist built from official reference sources to help you gently observe your child over time.
Growth Center
Track height, weight, and head circumference over time, with reference percentiles based on Korea's official 2017 growth chart.
Play by age
Age-appropriate play ideas you can try together with your child.
Health checkup schedule
See when Korea's national infant health checkups are due, based on the National Health Insurance Service schedule.
Vaccination schedule
See current and upcoming vaccinations based on the KDCA standard schedule.
Fun Time
Light, local-only play-preference features — not personality or medical tests. See the English overview.
This information is based on official data and healthcare programs in South Korea. Growth references, screening schedules, vaccination programs, and healthcare systems may differ by country.
A note to caregivers
- Every child develops at their own pace.
- This service is not intended for diagnosis or evaluation.
- If you have any concerns, please consult a pediatrician or an official infant health checkup provider.