What is Polycystic Ovary Syndrome (PCOS)?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Article Review Status
Submitted
Under Review
Approved

Last updated: February 25, 2025 • View editorial policy

From the Guidelines

Polycystic ovary syndrome (PCOS) is a complex hormonal disorder affecting women of reproductive age, characterized by irregular periods, excess androgen levels, and polycystic ovaries, with a prevalence of 8%–13% according to the Rotterdam criteria 1.

Definition and Diagnosis

PCOS is defined as the presence of two of three of the following: oligo/anovulation, polycystic ovaries, and clinical or biochemical hyperandrogenism 1. The exact cause remains unclear, though insulin resistance plays a significant role in many cases, with genetics and inflammation also contributing factors. Diagnosis typically requires meeting two of three criteria: irregular periods, excess androgens (detected through blood tests or physical symptoms), and polycystic ovaries visible on ultrasound.

Symptoms and Complications

PCOS typically manifests through symptoms including:

  • Irregular or missed periods
  • Heavy bleeding
  • Excess facial and body hair
  • Acne
  • Weight gain
  • Thinning hair on the scalp
  • Difficulty conceiving If left untreated, PCOS increases risks for:
  • Type 2 diabetes
  • Heart disease
  • Endometrial cancer
  • Infertility

Treatment and Management

Treatment focuses on managing symptoms and preventing complications, including:

  • Lifestyle modifications like weight loss and exercise to improve insulin sensitivity
  • Hormonal birth control to regulate periods and reduce androgen levels
  • Metformin to improve insulin resistance
  • Anti-androgen medications like spironolactone for addressing excess hair growth and acne Lifestyle management is the first-line management in the intervention hierarchy in PCOS, with a focus on weight and healthy lifestyle behaviors 2.

From the Research

Definition of Polycystic Ovary Syndrome (PCOS)

  • Polycystic ovary syndrome (PCOS) is one of the most prevalent endocrine disorders among reproductive-aged women 3, 4, 5, 6.
  • It is characterized by hyperandrogenism, anovulation, and polycystic ovaries 3, 4.

Symptoms and Associated Conditions

  • PCOS may be associated with other morbidities like diabetes and hypertension 5.
  • The condition worsens the life quality of women by disturbing their physiology and psychology in reproductive age 5.
  • Symptoms of PCOS include hirsutism, menstrual disturbances, and infertility 4.

Treatment and Management

  • Lifestyle changes are suggested as first-line interventions in managing PCOS 3.
  • Dietary interventions, such as foods with low glycemic index scores and high-fiber diets, can improve insulin sensitivity and hormonal balance in women with PCOS 3, 5.
  • Physical activity, like aerobic and resistance exercise, enhances insulin sensitivity, helps weight loss, and improves metabolic and reproductive outcomes in women with PCOS 3, 6.
  • Medications, such as metformin, clomiphene citrate, and gonadotrophin therapy, may be used to induce ovulation, reduce androgen levels, and improve fertility outcomes 4, 7.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.