Summary

• The diagnosis of failure to thrive (FTT) requires a careful assessment of growth parameters (weight, length/height, and head circumference) over time.
• The condition requires a comprehensive evaluation as both medical and psychosocial problems may contribute.
• Extensive medical tests are, however, generally not indicated, unless suggested by the history or examination.
• Interdisciplinary collaboration is ideal in evaluation and treatment.
• Hospitalisation should be reserved for severe or recalcitrant cases.
• The presence of an organic aetiology does not rule out the possibility of psychosocial contributing factors.
• Can occur at all socioeconomic levels. Although occurrence may be highest among children from low income families, recent evidence from the UK reported no association between socioeconomic status and growth at age 12 months.