Paeds · adolescent-and-young-adult-medicine
Polycystic ovary syndrome in adolescents
Also known as PCOS · Polycystic ovarian syndrome · Stein-Leventhal syndrome · Hyperandrogenic anovulation · Adolescent PCOS · Functional ovarian hyperandrogenism
A fellowship approach to PCOS in adolescents: Rotterdam-based diagnosis modified for developmental physiology, exclusion of mimics, lifestyle-first management with symptom-directed pharmacotherapy, metabolic and mental health screening, and long-term partnership.
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Target exams
Red flags
- Severe virilisation (clitoromegaly, deepening voice, rapid muscle bulk) suggesting androgen-secreting tumour
- Suicidal ideation, especially at diagnosis or with antiandrogen initiation
- Prolonged amenorrhoea beyond 3 months risking endometrial hyperplasia
- Acquired or worsening Cushingoid features suggesting Cushing syndrome rather than PCOS
- Severe insulin resistance with acanthosis nigricans progression and impaired glucose tolerance
- Sudden onset hirsutism in a prepubertal child rather than an adolescent
Life stages
Care settings
Clinical exam formats
Board mappings
- General and Community Paediatrics
- Adolescent gynaecology and endocrinology
- Current 2026 PREP curriculum — Learning Objective 4.1.1: Diagnose and manage endocrine 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
- Adolescent medicine and reproductive health
- Endocrinology in adolescent practice
- Long Cases
- Short Cases
- Communication stations
- 5. Health promotion and illness prevention
- 11. Adolescent health
- Endocrinology and diabetes: Recognises and manages common endocrine conditions including PCOS
- General Paediatrics: Provides developmentally appropriate adolescent reproductive health care
- Foundation of Practice (FOP)
- Applied Knowledge in Practice (AKP)
- Endocrinology and adolescent gynaecology
- History
- Communication
- Clinical
- Development
- General Pediatrics Content Outline — Domain 10: Endocrine Disorders
- General Pediatrics Content Outline — Domain 11: Adolescent Medicine and Gynecology
- General Pediatrics EPA 5: Assessing and managing common endocrine conditions in adolescents
- Adolescent Medicine — Menstrual disorders and hyperandrogenism
- Patient Care 1: History and Physical Examination
- Patient Care 5: Patient Management
- Medical Knowledge 2: Application of therapeutic modalities
- Interpersonal and Communication Skills 1: Patient- and Family-Centered Communication
- Systems-Based Practice 4: System Navigation for Patient-Centered Care – Transitions in Care
- Medical Expert
- Communicator
- Collaborator
- Pediatrics: Foundations EPA — Assessing and providing care for adolescents with reproductive health concerns
- Pediatrics: Core EPA — Providing preventive care and anticipatory guidance
Overview & Definition
A 16-year-old presents with irregular periods, acne, and weight gain. Her mother has type 2 diabetes. An ultrasound reports "polycystic ovaries" and the referring GP has already told the family she has PCOS. Your job is not to rubber-stamp the label but to determine whether this is true PCOS or normal adolescent physiology plus a common ultrasound finding. [2] [5]
Polycystic ovary syndrome is a heterogeneous endocrine disorder characterised by ovulatory dysfunction, hyperandrogenism, and polycystic ovarian morphology. The 2003 Rotterdam consensus established the most widely used diagnostic framework, requiring two of three criteria after other causes are excluded. In adolescents, that framework needs developmental modification because irregular cycles and multifollicular ovaries are physiologically normal in the first years after menarche. [4] [2]
The 2025 international adolescent-specific recommendations from Pena and colleagues bring the most current evidence to the adolescent diagnostic and management conversation, addressing why adult criteria cannot be transplanted unchanged into adolescent care. The condition carries reproductive, metabolic, and psychological consequences that span decades, making early accurate diagnosis and longitudinal management an investment in lifelong health. [1] [6]
References18ShowHide
- [1]Peña AS, Witchel SF, Boivin J, et al. International evidence-based recommendations for polycystic ovary syndrome in adolescents. BMC medicine, 2025.PMID 40069730
- [2]Rosenfield RL The Diagnosis of Polycystic Ovary Syndrome in Adolescents. Pediatrics, 2015.PMID 26598450
- [3]Legro RS Diagnosis and treatment of polycystic ovary syndrome: an Endocrine Society clinical practice guideline. Journal of clinical endocrinology and metabolism, 2013.PMID 24151290
- [4]Rotterdam ESHRE/ASRM-Sponsored PCOS Consensus Workshop Group Revised 2003 consensus on diagnostic criteria and long-term health risks related to polycystic ovary syndrome. Fertility and sterility, 2004.PMID 14711538
- [5]Witchel SF Curtailing PCOS. Pediatric research, 2020.PMID 31627209
- [6]Conway G The polycystic ovary syndrome: a position statement from the European Society of Endocrinology. European journal of endocrinology, 2014.PMID 24849517
- [7]Moran LJ Evidence summaries and recommendations from the international evidence-based guideline for the assessment and management of polycystic ovary syndrome: Lifestyle management. Obesity reviews, 2020.PMID 32452622
- [8]Hoeger K The impact of metformin, oral contraceptives, and lifestyle modification on polycystic ovary syndrome in obese adolescent women in two randomized, placebo-controlled clinical trials. Journal of clinical endocrinology and metabolism, 2008.PMID 18728175
- [9]March WA The prevalence of polycystic ovary syndrome in a community sample assessed under contrasting diagnostic criteria. Human reproduction, 2010.PMID 19910321
- [10]Azziz R The prevalence and features of the polycystic ovary syndrome in an unselected population. Journal of clinical endocrinology and metabolism, 2004.PMID 15181052
- [11]Dokras A Screening women with polycystic ovary syndrome for metabolic syndrome. Obstetrics and gynecology, 2005.PMID 15994628
- [12]Barry JA Anxiety and depression in polycystic ovary syndrome: a systematic review and meta-analysis. Human reproduction, 2011.PMID 21725075
- [13]Cinar N Effect of an oral contraceptive on emotional distress, anxiety and depression of women with polycystic ovary syndrome: a prospective study. Human reproduction, 2012.PMID 22473394
- [14]Wilson NA Quality of life in adolescent girls with polycystic ovary syndrome. Journal of paediatrics and child health, 2020.PMID 32810373
- [15]van der Ham K Anti-mullerian hormone as a diagnostic biomarker for polycystic ovary syndrome and polycystic ovarian morphology: a systematic review and meta-analysis. Fertility and sterility, 2024.PMID 38944177
- [16]Barry JA Risk of endometrial, ovarian and breast cancer in women with polycystic ovary syndrome: a systematic review and meta-analysis. Human reproduction update, 2014.PMID 24688118
- [17]Liu D The hepato-ovarian axis: genetic evidence for a causal association between non-alcoholic fatty liver disease and polycystic ovary syndrome. BMC medicine, 2023.PMID 36800955
- [18]Abdul Jafar NK Obstructive sleep apnea syndrome in polycystic ovary syndrome: a systematic review and meta-analysis. Frontiers in endocrinology, 2025.PMID 40255502