Six Months Old: Laughing, Rolling & the First Teeth
The halfway mark to a first birthday brings a baby who is unmistakably their own person. They laugh. They roll. They study their reflection with great seriousness. And for many families, this is the month a first tiny tooth makes its appearance.
Social & emotional development
Six-month-olds have moved well beyond smiling at anyone who passes by. They now distinguish between familiar faces and new ones, showing clear preference for the people they know. A mirror is endlessly entertaining — your baby will study their own reflection with curiosity and delight. And that full, genuine laugh? It's arrived.
Recognises familiar peopleEnjoys looking at their own reflectionLaughs out loud
Language & communication
Vocal experimentation is in full swing. Your baby is discovering what their mouth can do — blowing raspberries, squealing at high pitches, and taking turns making sounds with you in a way that genuinely resembles conversation. These aren't just cute party tricks; they're the building blocks of language.
Takes turns vocalising with youBlows raspberriesMakes high-pitched squealing sounds
Thinking & learning
Your baby is actively problem-solving now. They reach deliberately for things they want rather than just swiping at whatever is nearby. They explore new objects by putting them straight in the mouth — this is genuinely how they gather information at this age, not just a bad habit. And when they're done eating, they'll tell you clearly by closing their lips or turning their head away.
Intentional reach
Stretches toward a specific toy or object they want
Oral exploration
Mouths objects to learn about their texture and shape
Food communication
Closes lips or turns away to signal they're full
Movement & physical skills
Six months brings major physical achievements. Rolling from tummy to back is a highlight — and once your baby cracks this, they'll do it constantly. During tummy time they can now push all the way up on straight arms, and when sitting they're beginning to prop themselves up on their hands for balance. Independent sitting is just around the corner.
Rolls from tummy to backFull arm push-up during tummy timeLeans on hands to sit with support
How to support your baby this month
Six months is one of the most interactive and rewarding ages for play. Your baby is engaged, expressive, and ready to learn from everything you do together.
Mirror your baby's expressions and sounds right back at them — smile when they smile, copy the sounds they make. This back-and-forth is how they learn that communication is a two-way street.
Look at books and magazines together and name what you see. When your baby babbles at a picture, respond as if they said something real: "Yes! That is a dog!"
Point things out on walks — trees, cars, animals, other people. Narrating the world around you builds vocabulary long before your baby can use those words themselves.
Place toys just out of reach during floor time to encourage rolling and reaching. Stay close and cheer them on.
Sing and play music every day. Musical exposure supports brain development in ways that go well beyond learning to enjoy songs.
When your baby drops a toy, pick it up and hand it back. It seems tedious, but this game teaches cause and effect — one of the most important concepts in early cognition.
Talk to your pediatrician about starting solid foods. Breast milk or formula is still the primary nutrition source, but many babies are ready to explore purees around this time.
Keep screens limited to video calls with family. Everything your baby needs to learn right now comes from interacting with you, not a screen.
Dental milestones at six months
Six months is one of the most significant dental milestones of the entire first year. For many babies, the first tooth arrives right around now — and with it comes a whole new set of care responsibilities.
The first tooth often arrives this month
Most babies cut their first tooth somewhere between 4 and 7 months, making six months a prime time for that debut. The lower central incisors — the two front bottom teeth — almost always lead the way. You may notice swollen, tender gums, increased drooling, and a baby who wants to chew on absolutely everything. A clean chilled (not frozen) teething ring can help soothe sore gums.
Start brushing the moment that tooth appears
As soon as the first tooth erupts, it needs to be brushed twice a day — morning and before bed. Use a soft-bristled infant toothbrush and a smear of fluoride toothpaste no larger than a grain of rice. You don't need much, but fluoride is important: it strengthens enamel and protects against early decay.
Solid foods and teeth: what to know
If you're starting purees this month, be aware that sugary foods — even naturally sweet ones like fruit purées — can contribute to tooth decay if they're left on teeth. After solid feeds, offer a few sips of water to rinse the mouth, and stick to your twice-daily brushing routine. Avoid putting your baby to bed with a bottle of anything other than water.
Time to book that first dental appointment
The American Academy of Pediatric Dentistry recommends a first dental visit by the first birthday, or within six months of the first tooth. If a tooth has arrived this month, that window is now open. Don't wait for a problem to appear — the first visit is mostly about establishing a baseline, checking that early development looks healthy, and giving you guidance on care going forward. Many pediatric dental practices book out several months in advance.
No tooth yet at six months? That's completely normal. Some babies don't see their first tooth until 10–12 months or even later. Keep up your gum-wiping routine and watch for teething signs in the months ahead.
If your baby hasn't reached one or more milestones, or seems to have lost a skill they once had, bring it up with your pediatrician promptly. Early support makes a meaningful difference.