Down syndrome developmental milestones arrive in the same order as they do for other children, usually over a longer timeline. Knowing what to expect, month by month, helps parents celebrate progress rather than compare it against a standard chart.
Months 1–3: settling and sensing
Early weeks focus on feeding, sleeping and beginning to hold the head up. Low muscle tone can make head control take a little longer, and that is entirely normal.
Months 4–6: reaching and rolling
Babies begin to reach for objects, bring hands to the mouth, and may start to roll. Tummy time is especially valuable now for building neck and trunk strength.
Months 7–9: sitting and exploring
- Sitting with, then without, support.
- Transferring toys from hand to hand.
- Babbling and responding to familiar voices.
Months 10–12: moving toward mobility
Crawling (sometimes in creative styles), pulling to stand, and early gestures like pointing or waving begin to appear. Many of these emerge later in the second year, and that is expected.
Support the timeline, don’t rush it
Consistent play, physiotherapy and early intervention all help. See our overview of early intervention therapies that help for practical next steps.