Baby Milestones by Month: Growth and Development Guide

Babies grow and develop at different rates, so there is no single timetable that every child follows exactly. During the first year, many babies gradually learn to smile, recognise familiar people, reach for objects, sit, babble and move around. Some reach milestones earlier or later than others, and one milestone on its own does not tell you everything about a child’s development.

This month-by-month guide explains common developmental changes, what parents can do to support learning through everyday play, and when to discuss a concern with a healthcare professional. Use it as a general reference rather than a test your baby must pass.

What Are Baby Growth and Development Milestones?

Milestones are skills that many children develop within a particular age range. They can include physical movement, communication, thinking, social interaction and emotional responses.

Growth and development are related but different. Growth refers to physical changes such as weight, length and head circumference. Development refers to skills such as holding the head up, making sounds, reaching for toys and interacting with caregivers.

At routine clinic visits, a health worker can measure your baby’s growth, discuss feeding and sleep, review developmental progress and advise whether further assessment is needed. Your child’s Mother and Child Health (MCH) booklet is useful for keeping track of appointments and health information.

Baby Milestones by Month

The ages below describe common patterns, not strict deadlines. Development may be uneven: a baby might be quick to communicate but take longer to develop a particular movement skill.

Birth to 1 Month: Adjusting to the World

Newborns spend much of their time sleeping and feeding. Their movements may be jerky, and they often keep their hands curled. They may briefly focus on a nearby face, react to sudden sounds and respond to a caregiver’s voice.

How you can help: Hold your baby securely, speak softly, make eye contact when they are alert and respond to feeding and comfort cues. Always place your baby on their back to sleep.

2 Months: More Eye Contact and Social Smiles

Many babies begin to look at faces more attentively, smile in response to people, make sounds other than crying and react to loud noises. During supervised tummy time while awake, some begin lifting their head briefly.

How you can help: Talk, smile and sing to your baby. Give them short, comfortable periods of supervised tummy time while they are awake, increasing gradually as tolerated.

3 Months: Growing Awareness

Your baby may become more interested in faces, voices and objects. They may turn towards familiar sounds, bring their hands towards their mouth, move their arms and legs more actively and begin making more varied sounds.

How you can help: Offer safe opportunities to look at your face and track a toy with their eyes. Talk back when your baby coos, giving them time to respond in their own way.

4 Months: Reaching and Head Control

Many babies hold their head more steadily, bring their hands to their mouth, look at their hands and reach towards toys. Some begin chuckling or showing excitement when they see familiar people.

How you can help: Place an age-appropriate toy within reach while your baby is lying safely on their back. Continue supervised tummy time and talk about what you are doing during everyday care.

5 Months: Exploring with the Senses

Your baby may reach more purposefully, explore toys with their hands and mouth, respond to familiar voices and enjoy face-to-face games. Some begin rolling, although the timing and direction vary.

How you can help: Offer clean, lightweight toys without small detachable parts. Stay close during floor play, and stop swaddling as soon as your baby shows signs of trying to roll.

6 Months: More Interaction and Movement

Around this age, many babies recognise familiar people, laugh, take turns making sounds, reach for objects and roll in one or both directions. Some sit with support or use their hands to steady themselves while sitting.

Babies may also show interest in food around six months. Complementary foods are generally introduced at about six months when the baby is developmentally ready, while breast milk or appropriate infant formula remains an important source of nutrition.

How you can help: Talk, sing and play simple turn-taking games. If introducing solids, follow your health worker’s advice on suitable textures, safe feeding positions and foods to avoid.

7 Months: Sitting and Exploring

Some babies sit with less support, transfer objects between their hands and explore toys by turning, shaking or banging them. Babbling may become more varied, and your baby may respond to their name or familiar voices.

How you can help: Give your baby supervised play on a clear, safe floor space. Stay within reach when they are sitting, and keep small objects, cords, hot drinks and other hazards away.

8 Months: More Mobility and Social Awareness

Your baby may roll confidently, sit independently or begin moving around on the floor. Some rock on their hands and knees before crawling, while others move by shuffling or bottom-scooting.

Babies may become more cautious around unfamiliar people or upset when a caregiver leaves. These responses can be part of typical social development.

How you can help: Play simple games such as peekaboo and let your baby explore a safe space under supervision. Make the floor area safe rather than encouraging a particular crawling style.

9 Months: Babbling, Sitting and Responding

Many babies sit without support, respond to their names, make repeated sounds such as “ba-ba” and look for objects that disappear from view. Some move into sitting, crawl or pull themselves towards standing.

Not every baby crawls. The important thing is to look at your baby’s overall progress and discuss any concern about movement, interaction or communication with a health worker.

How you can help: Respond to your baby’s sounds, name familiar objects and offer toys that encourage safe reaching and exploration.

10 Months: Pulling Up and Using Their Hands

Some babies pull themselves up to stand while holding furniture, move along furniture with support or pick up small pieces of food between their fingers. Others are still developing their sitting, reaching and floor-movement skills.

How you can help: Keep furniture stable and remove sharp-edged or unstable items. Avoid baby walkers that allow babies to move around on wheels, as they can increase injury risk and do not teach walking.

11 Months: Communication and Problem-Solving

Your baby may use gestures, copy simple actions, understand familiar words or look towards a named person or object. Some stand briefly without support, cruise along furniture or take steps while holding an adult’s hands.

How you can help: Read simple picture books, sing familiar songs and name everyday objects. Give your baby time to communicate through sounds, gestures and facial expressions.

12 Months: Approaching the Toddler Years

Around their first birthday, many babies pull to stand, move along furniture, use gestures such as waving and make sounds that resemble meaningful words. Some take independent steps, while others are not yet walking.

Walking independently at 12 months is not a requirement for every child. Children commonly begin walking within a broad developmental window, and some healthy children take their first steps later.

How you can help: Offer safe floor space, stable furniture and opportunities to move while supervised. Celebrate new skills without comparing your baby with siblings or other children.

How to Support Your Baby’s Development
You do not need expensive toys or complicated activities to help your baby learn. Everyday interaction provides many opportunities to practise movement, communication and social skills.
Talk and sing regularly. Describe everyday activities, name familiar objects and respond to your baby’s sounds.
Make time for supervised floor play. Give your baby a safe space to move, reach and explore.
Read simple books. Point to pictures, name objects and let your baby touch sturdy, age-appropriate books.
Respond to your baby’s cues. Comfort them when upset and pause when they seem tired or overstimulated.
Choose safe toys. Avoid toys with loose parts, sharp edges, long cords or pieces that could cause choking.
Maintain routine health visits. Ask your clinic to monitor growth and discuss developmental progress.
For age-appropriate play ideas, see our guide to baby toys by age and our baby toy safety checklist.
When Should You Raise a Concern About Development?
Every baby develops at an individual pace, but certain signs deserve attention. Speak to your child’s nurse or clinician if your baby:
Does not seem to respond to loud sounds or familiar voices.
Rarely looks at faces or does not begin showing social responses as expected.
Has difficulty controlling their head as they grow.
Does not appear to make progress with movement, communication or interaction.
Uses one side of the body much less than the other, or seems unusually stiff or floppy.
Is not reaching several age-related milestones.
Loses a skill they previously had, such as babbling, making eye contact or a movement they could previously do.
These signs do not automatically mean that your baby has a developmental condition. They are reasons to seek an assessment rather than wait and see indefinitely. Early assessment can help identify whether support is needed. The US Centers for Disease Control and Prevention also advises parents to raise concerns promptly and discuss developmental screening with a healthcare professional.

If your baby loses skills suddenly, has a seizure, becomes unusually unresponsive or develops sudden weakness, seek urgent medical care.
What If Your Baby Was Born Prematurely?
Babies born prematurely may reach some milestones later than babies born at full term. Health professionals may use corrected age when assessing development during the first two years. This accounts for how early the baby was born.

For example, if a baby was born eight weeks before their due date, a clinician may consider them about eight weeks younger than their age calculated from birth when reviewing some developmental milestones.

Prematurity does not mean that a baby will necessarily experience developmental delays. Keep clinic appointments and ask your healthcare professional how your child’s progress should be assessed.
Baby Growth: What Should Parents Monitor?
Alongside developmental skills, health workers monitor physical growth using measurements such as weight, length and head circumference. These measurements are interpreted over time using appropriate growth charts rather than judging a baby by a single measurement.

A baby who is smaller or larger than another child is not necessarily unhealthy. What matters includes the pattern of growth, feeding, general health and the clinician’s assessment.

Attend routine MCH visits and discuss concerns such as poor feeding, persistent vomiting, unusual sleepiness or worries that your baby is not growing as expected. Seek prompt medical advice if your baby appears seriously unwell.
Frequently Asked Questions
When do babies start sitting?
Many babies begin sitting with support before they can sit independently. Independent sitting often develops around the middle of the first year, but timing varies. Discuss your baby’s progress with a health worker if you are concerned.
When do babies start crawling?
Crawling commonly develops during the second half of the first year, but some babies crawl later, move in other ways or skip crawling altogether. Look at overall development rather than treating crawling as a requirement.
When do babies walk independently?
Many babies take their first independent steps around their first birthday or during the months that follow. Some walk earlier and others later. If your child is not walking by 18 months, arrange a developmental discussion with a healthcare professional.
When should a baby start talking?
Babies communicate from birth through crying, eye contact, facial expressions and sounds. Babbling develops during infancy, and many children use meaningful words around their first birthday, although there is variation. If your baby is not responding to sounds, babbling or progressing in communication as expected, discuss it with a clinician.
Is it normal for my baby to reach milestones later than another baby?
Yes, babies develop at different rates, and comparing children can create unnecessary worry. However, if your baby misses milestones, seems to struggle in several areas or loses skills they previously had, contact your clinic for advice.
Where can I get my baby’s development checked in Kenya?
Start with your nearest MCH clinic, public health centre, paediatric clinic or qualified healthcare professional. Bring your child’s MCH booklet and share any concerns you have noticed at home.
A Reassuring Reminder for Parents
Milestones are useful guides, not a competition. Your baby may learn one skill early and take more time with another. Give them opportunities to play, talk, move and interact safely, and use routine clinic visits to discuss their growth and development.

If something worries you, trust your observations and ask a health professional. You do not need to wait until your baby reaches a particular age or misses several milestones before raising a concern.