Developmental milestones are key skills most children achieve by a certain age in areas like communication, movement, cognition, and social-emotional growth, and early screening is a structured process to identify delays so help can be provided promptly.
Infants and toddlers grow and change rapidly during the first three years. There are many tools available to help parents learn about their child’s growth and development, as well as resources for parents who have developmental concerns about their child.
What Are Developmental Milestones?
Milestones are measurable skills such as smiling, walking, speaking first words, or solving simple problems. They reflect how children typically develop in play, learning, speaking, acting, and moving.
Why Routine Checkups Matter
Routine well-child visits establish a baseline for your child’s health and development. Rather than just treating illness, these visits focus on preventive care, tracking growth trends, and identifying potential concerns before they become serious.
Conditions Often Detected and Managed Early:
- Growth and Nutritional Issues: Failure to thrive, excessive weight gain, microcephaly, macrocephaly, or nutritional deficiencies (e.g., iron-deficiency anemia).
- Developmental and Behavioral Delays: Speech and language delays, motor delays, cognitive issues, and Autism Spectrum Disorder (ASD).
- Sensory Deficits: Congenital or early-onset vision impairment and hearing loss.
- Physical Abnormalities: Hip dysplasia, heart murmurs, undescended testicles, high blood pressure, and spinal asymmetries (scoliosis).
- Environmental/Systemic Risks: Elevated blood lead levels, dental caries, and maternal postpartum depression.
AAP Schedule of Well-Child Visits
The American Academy of Pediatrics (AAP) Bright Futures periodicity schedule recommends routine well-child checkups at the following ages:
- Infancy: First week (3–5 days old), 1 month, 2 months, 4 months, 6 months, and 9 months.
- Early Childhood: 12 months, 15 months, 18 months, 24 months (2 years), 30 months (2½ years), 3 years, and 4 years.
- Middle Childhood & Adolescence: Annually from age 5 through 21.

Key Milestone & Screening Visit Highlights
2-Month Visit
- Growth & Physical Check: Measurements (weight, length, head circumference) plotted on standard WHO growth charts. Head-to-toe physical exam assessing heart, hips, muscle tone, and fontanelles.
- Developmental Milestones: Begins to smile at people, calms when spoken to or picked up, turns head toward sounds, makes cooing sounds, pushes up when on tummy, and moves both arms and legs.
- Screening & Guidance: Review of newborn screening results and maternal postpartum depression screening. Discussion of safe sleep practices (Back to Sleep) and feeding schedules.
- Immunizations: Routine primary childhood vaccines administered per the AAP immunization schedule.
6-Month Visit
- Growth & Physical Check: Continued growth tracking. Physical exam including oral health assessment (checking for teeth and applying fluoride varnish if recommended).
- Developmental Milestones: Rolls from tummy to back, sits briefly without support, responds to own name, strings vowels together when babbling (“oh”, “ah”), reaches for toys, and recognizes familiar faces.
- Screening & Guidance: Introduction of solid foods (iron-rich single-ingredient foods), transition planning, choking hazard prevention, and safe home environment counseling.
- Immunizations: Routine primary childhood vaccines and seasonal flu vaccination (if in season).
12-Month Visit
- Growth & Physical Check: Length, weight, and head circumference monitoring. Full physical assessment.
- Screening & Labs: Blood screening for anemia (hemoglobin/hematocrit) and risk-based or routine lead screening.
- Developmental Milestones: Pulls to stand, cruises along furniture or walks independently, plays simple games like “pat-a-cake,” waves “bye-bye,” calls parents “mama” or “dada” specifically, and responds to simple spoken requests.
- Nutrition & Safety: Transition from formula/breast milk to whole cow’s milk (or fortified plant substitute), weaning from bottles to open/sippy cups, and car seat guidance (rear-facing).
- Immunizations: 1-year booster and initial live-vaccine doses per the AAP schedule.
A healthcare provider can support a child’s developmental milestones by monitoring progress, guiding families, conducting screenings, and connecting to interventions when needed .
Providers use well-child visits to observe the child’s growth and compare it to age‑appropriate milestones in areas such as language, motor skills, social‑emotional development, and cognition.
At Natural Pediatrics, the most important reason why we recommend regular checkups is to get your questions answered and concerns addressed.


