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Polycystic ovary syndrome

Last reviewed: 6 Feb 2026
Last updated: 31 Dec 2025

Summary

Definition

History and exam

Key diagnostic factors

  • female of reproductive age
  • irregular menstruation
  • infertility
  • hirsutism
Full details

Other diagnostic factors

  • acne
  • overweight or obesity
  • hypertension
  • scalp hair loss
  • oily skin or excessive sweating
  • acanthosis nigricans
Full details

Risk factors

  • family history of PCOS
  • premature adrenarche
  • obesity
  • low birth weight
  • fetal androgen exposure
  • environmental endocrine disruptors
Full details

Diagnostic tests

1st tests to order

  • serum 17-hydroxyprogesterone
  • serum prolactin
  • serum thyroid-stimulating hormone
  • oral glucose tolerance test
  • fasting lipid panel
Full details

Tests to consider

  • serum total and free testosterone
  • serum dehydroepiandrosterone sulfate (DHEAS)
  • serum androstenedione
  • pelvic ultrasound
  • serum anti-Mullerian hormone
  • basal body temperature monitoring
  • luteal phase progesterone measurement
  • serum LH and follicle-stimulating hormone (FSH)
  • hemoglobin A1c or fasting plasma glucose
Full details

Treatment algorithm

ACUTE

with infertility and desiring fertility

ONGOING

not desiring current fertility

Contributors

Authors

Mark O. Goodarzi, MD, PhD
Mark O. Goodarzi

Division of Endocrinology, Diabetes & Metabolism

Eris M. Field Chair in Diabetes Research

Professor of Medicine

Cedars-Sinai Medical Center

Los Angeles

CA

Disclosures

MOG has been reimbursed for one-time participation in an advisory board for Nestle Health Science on the topic of exocrine pancreatic dysfunction. MOG is an author of a number of references cited in this topic.

Peer reviewers

Antoni Duleba, MD

Professor

Department of Obstetrics and Gynecology

University of California Davis

Sacramento

CA

Disclosures

AD declares that he has no competing interests.

Richard S. Legro, MD

Professor

Department of Obstetrics and Gynecology

Penn State Hershey College of Medicine

Hershey

PA

Divulgaciones

RSL has been reimbursed by Serono for attending a medical conference and received a lecture fee, and has consulted for Ferring. He has received research funding from the NIH, the Commonwealth of Pennsylvania, and Parke Davis. He is an author of a number of references cited in this topic.

Cornelis B. (Nils) Lambalk, MD, PhD

Gynaecologist/Fertility Specialist

Division of Reproductive Medicine

Department of Obstetrics and Gynaecology

VU University Medical Centre

Amsterdam

The Netherlands

Divulgaciones

CBL declares that he has no competing interests.

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Referencias

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Artículos principales

Azziz R, Carmina E, Chen Z, et al. Polycystic ovary syndrome. Nat Rev Dis Primers. 2016 Aug 11;2:16057. Resumen

Teede HJ, Tay CT, Laven JJE, et al. Recommendations from the 2023 international evidence-based guideline for the assessment and management of polycystic ovary syndrome. J Clin Endocrinol Metab. 2023 Sep 18;108(10):2447-69.Texto completo  Resumen

Artículos de referencia

Una lista completa de las fuentes a las que se hace referencia en este tema está disponible para los usuarios con acceso a todo BMJ Best Practice.
  • Polycystic ovary syndrome images
  • Diferenciales

    • 21-hydroxylase deficiency
    • Thyroid dysfunction
    • Hyperprolactinemia
    Más Diferenciales
  • Guías de práctica clínica

    • International evidence-based guideline for the assessment and management of polycystic ovary syndrome
    • ACOG practice bulletin: polycystic ovary syndrome
    Más Guías de práctica clínica
  • Folletos para el paciente

    Polycystic ovary syndrome: what is it?

    Polycystic ovary syndrome: what are the treatment options?

    Más Folletos para el paciente
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