Baby Developmental Milestone Checklist
Pick your baby's age in months and see milestones across 4 domains (motor, language, social, cognitive) based on CDC and Korean Pediatric Society guidelines. Check items off to get "typical" or "monitor" badges.
Age summary
12 months: first steps and first words
Overall summary
🤸 Motor!7
0/ 13
Done 0 · typical 4 · monitor 7
🗣️ Language!5
0/ 10
Done 0 · typical 3 · monitor 5
🫶 Social!2
0/ 7
Done 0 · typical 4 · monitor 2
🧩 Cognitive!3
0/ 6
Done 0 · typical 2 · monitor 3
17 item(s) flagged for monitoring. Individual variation is common — consider discussing with a pediatrician.
Choose a domain
🤸 Motor(12 items)
🗣️ Language(10 items)
🫶 Social(6 items)
🧩 Cognitive(6 items)
⚠️ Medical Disclaimer
This checklist is an informational reference only, not a medical diagnosis. Individual variation is large — consult a pediatrician or developmental specialist for any concerns.