4 months Baby Milestone Moments
Age: 4 months
About This Stage
At four months, your baby is becoming more interactive and expressive. You'll start seeing lots of smiles, coos, and playful movements as your baby begins to explore the world with growing curiosity. Each baby develops differently, but these are common milestones to notice at this age.
Social and Emotional Development
Your baby is developing social awareness and emotional connections.
- •Smiles spontaneously, especially at people
- •Likes to play with people and may cry when the playing stops
- •Copies some movements and facial expressions, such as smiling or frowning
Language and Communication
Your baby is learning to communicate and understand language.
- •Begins to babble and copies sounds they hear
- •Cries in different ways to show hunger, tiredness, or discomfort
Cognitive Development
(Learning, Thinking, Problem-Solving)
Your baby is learning about the world through exploration and discovery.
- •Lets you know if they are happy or sad
- •Responds to affection and enjoys familiar voices
- •Reaches for toys with one hand and watches objects closely
- •Follows moving things side to side with eyes and recognizes familiar people from a distance
Movement and Physical Development
Your baby is gaining strength, coordination, and motor skills.
- •Holds head steady, unsupported
- •Pushes down on legs when feet are on a hard surface
- •May roll over from tummy to back
- •Brings hands to mouth
- •When lying on stomach, pushes up to elbows
Supporting Your Baby's Healthy Growth and Connection
- •Talk, read, and sing to your baby often. These moments help with bonding and early language skills.
- •Give your baby plenty of supervised tummy time to strengthen neck, arm, and shoulder muscles.
- •Encourage play by letting your baby explore different textures and colorful toys.
- •Smile, make faces, and copy the sounds your baby makes—it builds communication and confidence.
- •Spend time cuddling, holding, and comforting your baby. This helps them feel safe and loved.
- •Keep a regular routine for sleep and feeding. Babies feel more secure when they know what to expect.
- •Avoid screens during playtime. Focused attention helps your baby feel connected and supported.
- •Always place your baby on their back to sleep on a firm, flat surface without pillows or loose blankets.
- •Feed only breast milk or formula for the first six months unless your doctor advises otherwise.
- •Never shake your baby. If you feel overwhelmed, place them safely in their crib and take a moment to breathe before returning.
Shop Age-Appropriate Toys
Find toys that support the developmental milestones your child is reaching
0-6 Months Toys
Explore sensory toys perfect for newborns and young babies
Choose toys that match your child's developmental stage for the best learning experience
Every Baby Develops at Their Own Pace
These milestones are general guidelines. If you have concerns about your baby's development, talk with your pediatrician. They can provide personalized guidance and support for your family.