Failure to thrive

Last updated: Tuesday, 30, November, 2010
Causes Appropriate Tests

Clinical assessment, including measurement of height and weight, assessment of growth over time.

Urine - microscopy and culture

Reduced nutrient availability

Dietary deficiency


Diarrhoea, including

See under Diarrhoea.

Intestinal infection

Increased nutrient requirements

Infection, especially

If not apparent, consider possibility of occult infection: FBC, differential WCC, blood film, ESR or CRP may be helpful.

See under Cough - chronic.

Immunodeficiency, especially

Inborn errors of metabolism

Rare causes, consider if above excluded; consult pathologist