---
title: "Developmental milestones at 6 months: what to expect"
description: "What a 6-month-old typically does — sitting with support, rolling, babbling, grabbing objects — by developmental area, the signs of readiness for solids, how to encourage development, and when to talk to the pediatrician."
canonical: https://buppi.baby/en/blog/baby-milestones-6-months/
last-updated: 2026-07-23
---

# Developmental milestones at 6 months: what to expect

> What a 6-month-old typically does — sitting with support, rolling, babbling, grabbing objects — by developmental area, the signs of readiness for solids, how to encourage development, and when to talk to the pediatrician.
>
> Canonical: https://buppi.baby/en/blog/baby-milestones-6-months/

At 6 months, your baby is a whole new person: they smile, "chat" in babbles, grab everything in sight and bring it to their mouth, and start exploring the world sitting up. Six months is a symbolic milestone — half a year! — and a practical one, because it coincides with the start of solids. This guide covers what a baby typically does at this age, by developmental area, the signs of readiness for solids, how to encourage development, and — most important — when it's worth talking to the pediatrician.

## What milestones are (and aren't)

Developmental milestones are the skills **most babies** (about 75%) already show by a certain age. They're a **reference**, not a test or a deadline. Two essentials before any list:

- **Every baby has their own pace.** There's a wide range of normal. Reaching a milestone a bit earlier or a bit later is usually natural variation.
- **What matters is the progress.** A baby gaining new skills week by week is on track, even if they don't tick every item on a list by the exact date.

And for **premature** babies, use **corrected age** (subtracting the weeks of prematurity) for the first 2 years.

## Milestones at 6 months, by area

According to the CDC's revised milestones, around 6 months many babies already:

| Area | What tends to appear at 6 months |
|---|---|
| **Social and emotional** | Recognizes familiar people; likes to look at self in a mirror; laughs |
| **Language and communication** | Blows "raspberries" (a motor sound with the tongue); babbles and makes vowel sounds; takes turns making sounds with you |
| **Cognitive** | Brings objects to the mouth to explore; reaches to grab a wanted toy; closes lips to show they don't want more food |
| **Movement/physical** | Rolls (at least from tummy to back); pushes up with straight arms on the tummy; leans on hands to support self when sitting |

Remember: these are **examples of what most do** — not a required checklist.

## Sitting, rolling, and discovering the body

The big motor theme at 6 months is the **trunk getting firmer**. In practice:

- **On their tummy**, the baby pushes up with straight arms, lifts the chest, and may "pivot" in place — the base for rolling and, later, crawling
- **Rolling** appears across a wide range; many roll both ways by the end of this stage, but some only go one way for now
- **Sitting** usually starts **with support** or in the "tripod" (hands on the floor in front). Sitting **without support** usually comes between **6 and 9 months** — the normal window described by the WHO is wide (the WHO uses **normal windows**, a different criterion from the CDC's "75% of babies" rule, which is why ages vary between sources)
- Lying on their back, the baby now **grabs their own feet** and brings them to their mouth: pure body exploration

None of this follows an exact calendar. If your baby has good head control, pushes up on their arms when on their tummy, and reaches for objects, the motor side is progressing.

## 6 months and starting solids

Not by chance, 6 months is the age when most babies show **signs of readiness** to start solids — and those signs are themselves developmental milestones:

- **Good head and neck control**
- **Sits with support**, with a reasonably stable trunk
- **Shows interest** in food (looks, leans in, opens their mouth)
- **Loses the tongue-thrust reflex** (no longer automatically pushes everything back out)

Starting solids goes **slowly** — the exact plan (how many offers a day, what to offer first) varies with guidelines and your pediatrician's advice — and **milk (breast milk or formula) remains the main source of nutrition until age 1**. At this stage, you can also offer **small amounts of water** with meals. Confirm the timing and approach with your pediatrician.

A common question: it's normal for the baby to gag (the gag reflex) when trying new textures — a **protective**, noisy, **normal** mechanism, different from **choking** (silent and dangerous). Always offer food with the baby **seated and supervised**.

## How to encourage development (through play)

The best stimulation at 6 months is everyday interaction — no gadgets needed:

- **Tummy time**, supervised, several times a day, to strengthen the trunk and neck
- **A mirror**: babies love their own reflection, and it boosts the social side
- **Naming things** and "chatting" (pausing for them to answer with sounds) feeds language
- **Reading** cloth or board books, with big, high-contrast pictures
- **Offering objects** of different textures and sizes (safe, no choking risk) to grab and explore
- **No screens**: the recommendation (AAP and SBP) is to avoid screens before age 2 — the stimulation that truly counts is human contact

## When to talk to the pediatrician

Milestones are flexible, but some signs are worth a conversation with the pediatrician. According to the CDC, mention it if, at 6 months, the baby:

- **Doesn't try to reach** for objects around them
- **Doesn't bring things to their mouth**
- **Doesn't react** to sounds in the environment
- **Shows no affection** for caregivers
- **Doesn't babble** or make sounds like squeals, and doesn't "answer" when you make sounds
- **Doesn't roll** in any direction
- Seems **very stiff** or **very floppy** (no firmness)

> **Important:** trusting your instinct counts for a lot here. If something in your baby's development worries you — even without a specific item from the list — bring it to the visit. Checking early costs nothing, and when stimulation or follow-up is needed, starting soon makes a difference. A missed milestone isn't a diagnosis; it's just an invitation to look more closely.

## What to expect next

From 6 to 9 months, development speeds up: sitting without support becomes solid, many babies start crawling (or scooting in their own way), the pincer grasp begins to form (picking up small things between thumb and index finger), and **separation anxiety** appears — a sign the bond is healthy. Babbling gets richer, with repeated syllables ("dadada," "bababa").

For now, at 6 months, enjoy it: it's a stage of smiles, discoveries, and first spoonfuls. Follow the progress more than the exact date of each milestone — and when in doubt, the pediatrician is always the best partner to confirm everything is on track.

## FAQ

### What does a 6-month-old typically do?

Around 6 months, many babies roll (at least one way), push up with straight arms on their tummy, sit with support, bring objects and their own feet to their mouth, grab toys, babble and blow 'raspberries' (a motor sound with the tongue), laugh, and recognize familiar faces. It's a wide range: every baby has their own pace.

### Does a 6-month-old sit on their own?

At 6 months, many babies sit with support or start the 'tripod sit' (hands propped on the floor in front). Sitting fully without support usually comes a bit later — generally between 6 and 9 months. It's normal variation; what matters is the progress over the weeks.

### My 6-month-old isn't rolling yet. Is that normal?

It can be. Rolling appears across a wide range, and some babies roll a little later. Look at the whole picture: if they have good head control, push up on their arms when on their tummy, and reach for objects, they're probably on track. But unlike crawling (which some babies skip), a complete absence of rolling deserves attention: if by 6 months they don't roll at all in any direction, mention it to the pediatrician.

### When should I worry about development at 6 months?

Talk to the pediatrician if the baby doesn't try to reach for objects, doesn't bring things to their mouth, doesn't react to sounds around them, shows no affection for caregivers, doesn't babble or squeal, doesn't roll in any direction, or seems very stiff or very floppy. The earlier it's looked into, the better.

### Do milestones apply to premature babies?

For babies born prematurely, use corrected age (subtracting the weeks of prematurity) for the first 2 years. A baby born 2 months early, for example, is assessed as if 4 months old at 6 months of life. That's expected, and the pediatrician follows it.

### Can my 6-month-old start eating?

Around 6 months, most babies show signs of readiness: good head control, sitting with support, showing interest in food, and no longer pushing everything out with the tongue. Starting solids goes slowly, always keeping milk (breast milk or formula) as the main food until age 1. Confirm the timing with your pediatrician.