Which statement about percentile crossing on growth charts is correct?

• A. It may indicate abnormal growth velocity and warrants further assessment
• B. It confirms healthy growth
• C. It indicates measurement error only
• D. It means the child is underweight

Answer: (A)

Crossing percentiles on growth charts signals a change in growth velocity over time. When a child shifts from one percentile range to a markedly different one, the rate at which they are growing is not following the previous pattern. That change is a red flag that prompts a closer look for potential issues such as inadequate nutrition, endocrine disorders, chronic illness, or psychosocial factors affecting growth. It does not guarantee healthy growth, because stable placement within a consistent percentile is more reassuring than frequent shifts. While measurement error can contribute to a blip, a pattern of crossing percentiles across multiple visits suggests a real change rather than just a random mistake. It also doesn’t by itself indicate that the child is underweight; weight status depends on the overall pattern across weight-for-age, height-for-age, and other factors, not solely on percentile crossing.