CDC Growth Charts for Girls: How to Interpret Weight & Height Percentiles

The **CDC Growth Charts (2000/2022 updates)** are the U.S. standard for tracking growth in girls aged 0–20 years. They reflect a nationally representative reference population.

Key Charts for Girls

• Weight-for-Age (0–20 yr)
• Length/Stature-for-Age (0–20 yr)
• Weight-for-Length (0–2 yr) / BMI-for-Age (2–20 yr)
• Head Circumference-for-Age (0–3 yr)

How to Read Percentiles

• 5th–95th percentile: Typical range.
• <5th or >95th: Warrants evaluation (not necessarily pathology).
• Crossing percentiles rapidly: More concerning than stable high/low.
• BMI-for-Age Categories (2–20 yr):
  • <5th: Underweight
  • 5th–84th: Healthy weight
  • 85th–94th: Overweight
  • ≥95th: Obesity

Accessing the Charts

• Official CDC Page: cdc.gov/growthcharts/girls_clinical.htm — PDFs for printing, interactive tools.
• WHO Charts (0–5 yr): Use for breastfed infants (CDC based on mixed feeding).
• Apps: CDC Milestone Tracker, growth chart calculators (PediTools, MDCalc).

Clinical Context

• Ethnicity-specific charts not provided; CDC charts are reference, not prescription.
• Premature infants: Use corrected age (Fenton charts <50 wks postmenstrual).
• Special conditions: Syndrome-specific charts (Down, Turner, etc.) available.

When to Act

Discuss with pediatrician if: crossing 2 major percentile lines, BMI ≥95th with comorbidities, <5th with dietary concerns, or parental worry. Growth *trajectory* > single point.