Paeds · endocrinology-diabetes-and-growth
Obesity: assessment, complications and treatment
Also known as Childhood obesity · Paediatric obesity · Severe obesity in children · Obesity comorbidity screening · Childhood overweight and obesity · Paediatric metabolic syndrome · Adolescent bariatric disease
A fellowship approach to childhood obesity as a chronic disease of excess adiposity: BMI-for-age classification with adult crossover, systematic comorbidity screening across six systems, exclusion of secondary and syndromic causes, and staged treatment from lifestyle foundation through anti-obesity pharmacotherapy to metabolic and bariatric surgery, delivered in family-centred, weight-neutral language.
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Red flags
- Symptomatic hyperglycaemia, ketosis, or hyperosmolarity on diabetes screening — type 2 diabetes presenting acutely
- Severe hypertension with target-organ signs or hypertensive emergency
- Obstructive sleep apnoea with marked desaturation, cor pulmonale, or daytime hypercapnia
- Rapid weight gain with short stature, developmental delay, or Cushingoid features suggesting a secondary or syndromic cause
- Restrictive eating with physiological instability in a higher-weight child — atypical anorexia
- Slipped capital femoral epiphysis presenting as new hip or knee pain in an overweight child
- Acute psychological crisis or self-harm disclosed during weight assessment
Life stages
Care settings
Clinical exam formats
Board mappings
- General and Community Paediatrics
- Endocrine and metabolic disorders
- Growth, development and nutrition
- Current 2026 PREP curriculum — Learning Objective 4.1.1: Diagnose and manage endocrine and metabolic disorders in children and adolescents
- Renewed curriculum for first-year trainees from 2027 — Learning goal 5: Clinical assessment – essential general paediatrics
- Renewed curriculum for first-year trainees from 2027 — Learning goal 6: Clinical management – essential general paediatrics
- Renewed curriculum for first-year trainees from 2027 — Learning goal 15: Essential general paediatrics
- Endocrine, diabetes and metabolic disorders
- Nutrition, growth and obesity
- Long Cases
- Short Cases
- Communication stations
- 5. Health promotion and illness prevention
- 9. Nutrition, healthy weight and physical activity
- Nutrition: Recognises and manages obesity, overweight and faltering growth
- Endocrinology and diabetes: Manages disorders of weight and energy balance
- Foundation of Practice (FOP)
- Applied Knowledge in Practice (AKP)
- Nutrition, growth and endocrinology
- History
- Communication
- Clinical
- Development
- General Pediatrics Content Outline — Domain 10: Endocrine Disorders
- General Pediatrics EPA 5: Assessing and managing common metabolic and nutritional conditions including obesity
- Endocrinology — Obesity, glucose homeostasis and metabolic syndrome
- Patient Care 1: History and Physical Examination
- Patient Care 5: Patient Management
- Medical Knowledge 2: Application of therapeutic modalities
- Systems-Based Practice 4: System Navigation for Patient-Centered Care – Transitions in Care
- Medical Expert
- Communicator
- Health Advocate
- Pediatrics: Core EPA — Providing preventive care and anticipatory guidance
- Pediatrics: Foundations EPA — Assessing and managing weight and comorbidity in children
A 10-year-old arrives because his BMI has crossed the 97th percentile. His father, who has type 2 diabetes, wants to know whether his son is "sick" and what to do. Three tasks sit in front of you at once. You must classify the weight accurately against age and sex, you must hunt for the comorbidities that make this a disease rather than a number, and you must build a staged plan the family can sustain without shame. This page teaches you to do all three, with the endocrinology lens the question demands. [1] [2]
Overview & Definition
Childhood obesity is a chronic, relapsing disease of excess adiposity in which biological, behavioural, psychosocial and environmental forces have pushed energy balance toward sustained fat storage. The 2023 American Academy of Pediatrics Clinical Practice Guideline reframes it this way deliberately, moving the conversation away from blame and toward long-term, treatable disease. [1]
Clinically you define the physical dimension with body mass index plotted against age and sex on a growth reference. From ages two through nineteen, obesity is a BMI at or above the 95th percentile, overweight spans the 85th to below the 95th percentile, and severe obesity carries stricter thresholds that change management. The Endocrine Society guideline sits alongside the AAP framework and gives the same percentile-based definition. [1] [2]
The reframe matters because it changes what you do next. Once obesity is a disease, your job is to assess it, stage it, screen for its complications and treat it longitudinally — exactly as you would asthma or diabetes — rather than waiting for the child to "grow out of it." Watchful waiting is no longer the recommended stance. [1]
These numbers orient you. The tracking figure explains why childhood is the strategic window, and the comorbidity figure explains why you screen at the first visit rather than waiting. [4] [1]
References13ShowHide
- [1]Hampl SE, Hassink SG, Skinner AC Clinical Practice Guideline for the Evaluation and Treatment of Children and Adolescents With Obesity. Pediatrics, 2023.PMID 36622115
- [2]Styne DM, Arslanian SA, Connor EL Pediatric Obesity-Assessment, Treatment, and Prevention: An Endocrine Society Clinical Practice Guideline. Journal of clinical endocrinology and metabolism, 2017.PMID 28359099
- [3]Mead E, Brown T, Rees K Diet, physical activity and behavioural interventions for the treatment of overweight or obese children from the age of 6 to 11 years. Cochrane Database of Systematic Reviews, 2017.PMID 28639319
- [4]Simmonds M, Llewellyn A, Owen CG Predicting adult obesity from childhood obesity: a systematic review and meta-analysis. Obesity reviews, 2016.PMID 26696565
- [5]Kelly AS, Barlow SE, Rao G Severe obesity in children and adolescents: identification, associated health risks, and treatment approaches: a scientific statement from the American Heart Association. Circulation, 2013.PMID 24016455
- [6]Inge TH, Laffel LM, Jenkins TM Comparison of Surgical and Medical Therapy for Type 2 Diabetes in Severely Obese Adolescents. JAMA pediatrics, 2018.PMID 29532078
- [7]Vos MB, Abrams SH, Barlow SE NASPGHAN Clinical Practice Guideline for the Diagnosis and Treatment of Nonalcoholic Fatty Liver Disease in Children. Journal of pediatric gastroenterology and nutrition, 2017.PMID 28107283
- [8]Ells LJ, Rees K, Brown T Interventions for treating children and adolescents with overweight and obesity: an overview of Cochrane reviews. International journal of obesity, 2018.PMID 30301964
- [9]Puhl RM, Lessard LM Weight Stigma in Youth: Prevalence, Consequences, and Considerations for Clinical Practice. Current obesity reports, 2020.PMID 33079337
- [10]Llewellyn A, Simmonds M, Owen CG Childhood obesity as a predictor of morbidity in adulthood: a systematic review and meta-analysis. Obesity reviews, 2016.PMID 26440472
- [11]Mannan M, Mamun A, Doi S Prospective Associations between Depression and Obesity for Adolescent Males and Females- A Systematic Review and Meta-Analysis of Longitudinal Studies. PLoS one, 2016.PMID 27285386
- [12]Kelly AS, Auerbach P, Barrientos-Perez M A Randomized, Controlled Trial of Liraglutide for Adolescents with Obesity. New England Journal of Medicine, 2020.PMID 32233338
- [13]Weghuber D, Barrett T, Barrientos-Pérez M, et al. Once-Weekly Semaglutide in Adolescents with Obesity. New England Journal of Medicine, 2022.PMID 36322838