A baby’s first year is full of changes, but they rarely arrive neatly on a calendar date. One week your baby is studying your face; later, they are reaching for toys, experimenting with sounds or finding new ways to move. This baby development milestones checklist brings those changes together so you can see progress across movement, communication, thinking, social interaction and the senses.
How to use your baby’s milestone checklist
Check in every few weeks rather than testing skills daily. Beside each milestone, write “not yet”, “emerging” or “usually does this”, then add the date and an example. A note such as “turned towards Dad’s voice during breakfast” is more informative than a tick alone.
Look at patterns across several areas. A baby may be quick to babble but slower to roll. Do not force a movement or compare your child with a friend’s baby. If something concerns you, discuss it with a health visitor or GP rather than waiting for the next checklist date.
Baby development milestones by age
Birth to two months
Movement: Your newborn moves their arms and legs, gradually gains head control and may briefly lift their head during supervised tummy time while awake. Communication and senses: They react to sounds, especially familiar voices, and look at nearby faces. Social development: By around six to eight weeks, many babies begin giving social smiles. Watch for increasing alertness and engagement rather than expecting every skill immediately.
Three to four months
Movement: Head control becomes steadier and your baby may push up on their forearms during tummy time. Hands open more often, and reaching towards a toy may begin. Communication: Cooing and back-and-forth sounds become more noticeable. Thinking and social skills: Your baby watches moving objects, recognises familiar people and often smiles to attract attention. Offer a toy within easy reach and watch their response.
Five to six months
Movement: Many babies reach deliberately, grasp objects and bring them to their mouths. Some roll from tummy to back or in both directions, although timing varies. Communication: Squeals, laughter and early strings of sounds may appear. Thinking and senses: Your baby explores textures, follows interesting activity and begins learning that actions have effects. Keep small objects and choking hazards out of reach.
Seven to nine months
Movement: Sitting without support becomes an important skill, alongside transferring toys between hands and finding ways to get around. Some crawl, some bottom-shuffle and some move differently. Communication: Repeated babbling sounds and responses to familiar words may emerge. Social and thinking skills: Peekaboo becomes entertaining, and your baby may search for a partly hidden toy or show caution around unfamiliar people. If your baby cannot sit unsupported by eight months, seek professional assessment.
Ten to twelve months
Movement: Many babies pull themselves up, cruise along furniture or use finger-and-thumb grasping to pick up small pieces of food. Walking independently is not required by the first birthday. Communication: They may understand familiar requests, use gestures such as waving or pointing, and say a meaningful word or two, although spoken language develops at different rates. Thinking and social skills: Imitating actions, searching for hidden objects and sharing attention with you become more noticeable.
For skills that change quickly, explore our month-by-month baby development guide. You can also follow our baby rolling and sitting milestones guide for more detail about movement.
Track five areas, not just physical milestones
An infant development checklist works best when it includes more than rolling, crawling and standing. Record movement and hand coordination; communication, including sounds and gestures; thinking, such as exploring cause and effect; social and emotional connections; and sensory responses to sights, sounds and touch.
These areas overlap. When a baby shakes a rattle, they practise grasping, notice a sound, repeat an action and may look towards you to share the moment. One observation can reveal several skills. Our guide to baby speech and communication milestones can help you track quieter changes.
A practical way to keep a milestone record
Imagine your eight-month-old is not crawling, but sits confidently, reaches across their body for a toy, babbles with you and rolls to reach something interesting. Rather than writing “behind on crawling”, record what they can do, what they are attempting and anything unusual. Crawling is not universal; the wider picture matters.
Keep dated notes on your phone or in your child’s personal child health record, commonly called the red book in the UK. A simple milestone tracker for baby development might include age, skill area, observation and any question for the health visitor. Videos of natural play can help explain a concern at an appointment.
When to seek advice in the UK
Ask your health visitor or GP if your baby seems unusually floppy or stiff, moves one side differently, has limited responses to sound or visual interaction, or is not progressing in ways that concern you. Loss of previously acquired skills warrants prompt medical advice. Clear early hand preference before the first birthday and not sitting unsupported by eight months also deserve assessment under NICE guidance.
You do not need to wait for a scheduled review. NHS child development checks include a review at around six to eight weeks and another at nine to twelve months, when your health visiting team may use the Ages and Stages Questionnaire. This checklist can support those conversations, but does not replace a professional assessment.
What if your baby was born prematurely?
For babies born before 37 weeks, professionals often consider corrected age when assessing development. This accounts for how early your baby arrived. A baby born eight weeks early who is six months old chronologically has a corrected age of roughly four months. Ask your healthcare team which milestones and follow-up schedule are appropriate, particularly if your baby receives specialist surveillance.
Frequently asked questions
Do all babies achieve first year milestones at the same age?
No. First year milestones are approximate guides rather than deadlines. Look for steady development across different skills and discuss significant delays, asymmetry or lost abilities with a professional.
Is it normal if my baby never crawls?
Yes. Some babies bottom-shuffle or move in other ways before walking. What matters is overall movement and progress. Ask your health visitor if your baby shows no signs of moving around by twelve months.
Should I track milestones every day?
Usually not. A few observations each month provide a clearer picture than daily checking. Record new skills when they appear and any concern you want to discuss.
Where can I get help with a baby milestones checklist in the UK?
Your NHS health visitor or GP can review your concerns. Take your red book and notes to appointments, and ask for advice sooner if development seems to stall or a skill disappears.
Keeping the bigger picture in view
A useful baby milestones checklist captures the small changes that show how your child is learning, not just the headline moments. Notice what your baby enjoys, give them safe opportunities to move and interact, and keep a record to share with your health visiting team. Progress is a story unfolding over time, not a race through boxes.
