Developmental milestones
What a child this age is expected to do
CDC splits 2 months to 5 years into 12 checkpoints, each listing what about 75% or more of children are already doing. Pick an age, tick what your child does, read the result there and then.
- 2 months11 itemsChina’s warning signs at 3 months
- 4 months13 items1 WHO windows open
- 6 months12 itemsChina’s warning signs at 6 months4 WHO windows open
- 9 months13 itemsChina’s warning signs at 8 months6 WHO windows open
- 1 years10 itemsChina’s warning signs at 12 months4 WHO windows open
- 15 months13 items2 WHO windows open
- 18 months15 itemsChina’s warning signs at 18 months
- 2 years13 itemsChina’s warning signs at 24 months
- 30 months15 itemsChina’s warning signs at 30 months
- 3 years12 itemsChina’s warning signs at 36 months
- 4 years17 itemsChina’s warning signs at 48 months
- 5 years15 itemsChina’s warning signs at 60 months
China publishes one further set of warning signs at 72 months (6 years), past the 5-year end of CDC’s checklists, so it is not folded into any page here.
Where this page’s data comes from
- CDC Learn the Signs. Act Early. milestone checklists (revised February 2022)
- China NHC screening list of developmental warning signs (2022)
- WHO Motor Development Milestones (2006, MGRS motor development study)