Understanding Baby Growth Milestones: 0-24 Months
Every parent wants to know: is my baby developing normally? Understanding what is typical at each age helps you support your child and spot the rare cases when something needs attention.
Remember: these are averages, not deadlines. Babies develop at their own pace. The ranges below represent the typical window, not a strict schedule.
0-3 Months: The Newborn Stage
Physical: Gains about 5-7 oz per week. Lifts head briefly during tummy time.
Social: Focuses on faces 8-12 inches away. First social smiles appear around 6-8 weeks.
Communication: Crying is the primary communication. Begins cooing by 2-3 months.
4-6 Months: Getting Interactive
Physical: Rolls from tummy to back. Sits with support. Reaches for and grasps objects.
Social: Recognizes familiar faces. Laughs! Explores objects by mouthing.
What helps: Engaging rattles and sensory toys, face-to-face play, reading aloud.
7-9 Months: On the Move
Physical: Sits independently. Many start crawling. Pulls to stand with support.
Social: Stranger anxiety begins. Plays peek-a-boo. Understands object permanence.
10-12 Months: The First Steps
Physical: Cruises along furniture. Many take first steps around 12 months (range: 9-15 months).
Communication: First real words with meaning. Vocabulary of 1-3 words is typical at 12 months.
13-18 Months: The Explorer
Physical: Walking steadily. Climbs. Scribbles with crayons. Stacks 2-3 blocks.
Communication: Vocabulary grows to 10-20 words. Points to body parts when asked.
What helps: Push-and-pull toys, shape sorters, board books with pictures.
19-24 Months: Language Explosion
Physical: Runs. Kicks a ball. Climbs up stairs with support.
Communication: By 24 months, most children have 50+ words and begin combining two words.
Red Flags to Discuss with Your Pediatrician
- Does not smile socially by 3 months
- Does not babble by 12 months
- Does not point or wave by 12 months
- Loses skills they previously had
- Fewer than 50 words by 24 months
- Does not walk by 18 months