What should you know about failure to thrive in pediatrics?

The term refers to a growth pattern, not a single disease. A paediatric clinician compares weight, height or length and, when relevant, head growth with earlier measurements. Appetite, diet, feeding environment, bowel symptoms, vomiting, energy, sleep and development all add context. Some children take in too little, have difficulty absorbing nutrients, or use extra energy because of a health condition. Emotional support matters because blame can make feeding more stressful.

Book a child-health review and bring the growth record if available. Write down a usual day of meals, snacks and drinks, including portions and mealtime behaviour. Note pain, diarrhoea, constipation, vomiting, cough, tiredness and changes in development. The clinician may examine the child, observe eating, discuss family routines and decide whether targeted tests or specialist input is useful. Keep meals calm and follow advice about any nutrition changes.

Seek urgent care for breathing difficulty, severe weakness, unusual sleepiness, repeated vomiting, blood in vomit or stool, signs of dehydration, or a child who cannot keep fluids down. Same-day advice is appropriate when intake drops sharply, weight loss is noticed, or a child with a long-term condition becomes less active. A child who is responsive and drinking can usually follow the clinician’s planned review, but worsening symptoms change that plan.

Ask which measurements show the concern, what intake is suitable for your child, whether symptoms suggest a medical cause, and how progress will be monitored. Ask how to respond to food refusal without pressure and when a dietitian or paediatric specialist should be involved.