Developmental Milestones: When to Celebrate and When to Call Your Pediatrician
A parent-friendly guide to developmental milestones from birth to age 5. Learn what to expect and when to talk to your pediatrician about delays.
Every child develops at their own pace, but there are general milestones that help pediatricians track healthy progress. Here's what to look for — and when to reach out for guidance.
0–3 Months
Your baby should begin to smile socially, follow objects with their eyes, raise their head during tummy time, and respond to sounds. These early milestones reflect healthy brain and muscle development.
4–6 Months
Expect rolling over (both directions), reaching for objects, babbling, laughing, and recognizing familiar faces. Most babies begin sitting with support around 5–6 months.
7–12 Months
Crawling typically starts between 7–10 months, though some babies skip crawling entirely. First words (mama, dada) usually appear around 10–12 months. Pulling to stand and cruising along furniture are common by 12 months.
1–2 Years
Walking independently usually occurs between 12–15 months. Vocabulary grows rapidly — from a few words at 12 months to 50+ words by age 2. Your toddler should be pointing, following simple instructions, and engaging in pretend play.
3–5 Years
By age 3, most children speak in short sentences, can follow two-step instructions, and begin interactive play with peers. By 5, they should recognize letters, count to 10, and show increasing independence in self-care.
When to Call Your Pediatrician
Contact us if your child: isn't babbling by 12 months, isn't walking by 18 months, has lost skills they previously had, doesn't make eye contact, doesn't respond to their name by 12 months, or shows no interest in other children by age 2. Early intervention can make a significant difference.
Every well-child visit at American Pediatrics includes a developmental screening. We use standardized tools to track your child's progress and can refer to specialists if needed.
Have Questions About Your Child's Health?
Our board-certified pediatricians are here to help at all 9 Southern California locations.
Book an Appointment