PCOS (Polycystic Ovary Syndrome): Everything You Need to Know

What Is PCOS?

PCOS, or polycystic ovary syndrome, is a chronic hormonal disorder where the ovaries produce excessive amounts of male hormones called androgens. This hormonal imbalance disrupts normal ovulation, leading to irregular menstrual cycles and various metabolic complications.

The condition affects each woman differently. Some experience primarily reproductive symptoms like irregular periods and fertility challenges, while others face metabolic issues, including insulin resistance and weight gain. Understanding PCOS helps you recognise that it's not just a reproductive disorder—it’s a whole-body condition requiring comprehensive care requiring comprehensive management.

Causes and Risk Factors of PCOS

• Key Contributing Factors:
  • Genetic predisposition: PCOS often runs in families, suggesting a strong hereditary link
  • Insulin resistance: Present in up to 70% of women with PCOS, amplifying androgen production
  • Hormonal imbalance: Elevated luteinising hormone (LH) disrupts normal ovarian function
  • Inflammation: Chronic low-grade inflammation contributing to insulin resistance and androgen excess
• Risk Factors:
  • Family history of PCOS, diabetes, or metabolic syndrome
  • Obesity, particularly central abdominal weight gain
  • Sedentary lifestyle and poor dietary habits
  • Early exposure to androgens during foetal development

PCOS causes involve complex interactions between genetics and environment. While you cannot change your genetic makeup, understanding these PCOS causes empowers you to address modifiable risk factors through lifestyle changes and medical intervention.

The Pathophysiology of PCOS

The underlying mechanisms of PCOS involve disrupted communication between the brain (hypothalamus), pituitary gland, and ovaries. The hypothalamus releases gonadotropin-releasing hormone (GnRH) in increased pulses, leading to elevated LH production. This excess LH stimulates ovarian theca cells to produce more androgens, while relatively low follicle-stimulating hormone (FSH) impairs egg maturation.

Insulin resistance creates a vicious cycle; high insulin levels enhance ovarian androgen production while reducing sex hormone-binding globulin (SHBG), increasing free testosterone levels. In the ovaries, many small follicles begin to grow but fail to mature or release an egg, creating the characteristic "polycystic" appearance on ultrasound. This complex interplay of hormonal and metabolic dysfunction explains why PCOS treatment requires a multifaceted approach.

Symptoms and Signs of PCOS

1. Irregular menstrual cycles: Periods occurring fewer than eight times yearly or cycles longer than 35 days.
2. Hirsutism: Excess hair growth on the face, chest, back, or abdomen affects 60-70% of women.
3. Acne and oily skin: Often severe and persistent beyond typical teenage years.
4. Male-pattern hair loss: Thinning hair on the scalp, particularly at the crown.
5. Weight gain or difficulty losing weight: Especially around the midsection.
6. Skin darkening: Acanthosis nigricans appearing as dark patches on the neck, underarms, or groin.
7. Fertility challenges: Difficulty conceiving due to irregular ovulation.
8. Mood changes: Increased risk of anxiety and depression.
9. Sleep disturbances: Including sleep apnoea, particularly in those with obesity.

Not all women experience every symptom, and severity can vary widely. Some may have mild PCOS symptoms, while others face more severe manifestations requiring intensive management.

How Is PCOS Diagnosed?

PCOS diagnosis relies on clinical assessment after excluding other conditions with similar presentations. Healthcare providers typically use the Rotterdam criteria, requiring two of three features: irregular ovulation, clinical or biochemical evidence of excess androgens, and polycystic ovarian morphology on ultrasound.

Diagnostic components include:

• Medical history: Menstrual patterns, weight changes, family history.
• Physical examination: Signs of hirsutism, acne, hair loss, and insulin resistance.
• Laboratory tests: Hormone levels, including testosterone, thyroid function, and glucose metabolism.
• Pelvic ultrasound: Identifying polycystic ovarian morphology.

The PCOS Profile 1 Test includes key hormone markers, while the PCOS Profile 2 Test provides a more comprehensive evaluation with additional metabolic parameters. These diagnostic tools help healthcare providers develop personalised treatment plans addressing your specific needs.

PCOS Subtypes and Phenotypes

Clinicians typically classify PCOS into four main phenotypes:

• Classic PCOS: Hyperandrogenism, ovulatory dysfunction, and polycystic ovaries
• Ovulatory PCOS: Hyperandrogenism and polycystic ovaries with regular ovulation
• Non-hyperandrogenic PCOS: Ovulatory dysfunction and polycystic ovaries without obvious androgen excess
• Mild PCOS: Hyperandrogenism and ovulatory dysfunction without polycystic ovarian morphology

Long-term Health Risks and Complications

PCOS significantly increases risks for several serious health conditions. Women with PCOS face a 2 to 4-times higher risk of developing type 2 diabetes, often presenting earlier than those without the condition. Cardiovascular disease risk increases due to insulin resistance, dyslipidaemia, and hypertension.

Additional complications include:

• Metabolic syndrome: Affecting up to 50% of women with PCOS
• Non-alcoholic fatty liver disease: Linked to insulin resistance
• Endometrial cancer: Due to prolonged oestrogen exposure from irregular ovulation
• Sleep apnoea: Especially among women with obesity, due to hormonal and airway changes
• Mental health challenges: Depression and anxiety rates are significantly elevated

PCOS and Fertility: What You Need to Know

PCOS is the leading cause of ovulatory infertility, affecting 6-13% of women of reproductive age, according to the WHO. Irregular ovulation makes predicting fertile periods challenging, but many women with PCOS can conceive with appropriate treatment. Fertility outcomes depend on factors such as age, weight, insulin sensitivity, and the specific PCOS phenotype. Even a modest 5–10% reduction in body weight can restore ovulation and significantly improve fertility outcomes.

How to Manage PCOS: Lifestyle and Diet Recommendations

• Weight management: Even modest weight loss improves hormonal balance.
• Regular exercise: Combining cardiovascular activity with resistance training
• Balanced nutrition: Focus on whole foods, lean proteins, high-fibre vegetables, and complex carbohydrates with a low glycaemic index
• Stress management: Through meditation, yoga, or counselling
• Adequate sleep: Maintaining consistent sleep schedules

Dietary approaches for PCOS emphasise low-glycaemic index foods to help regulate insulin levels, along with anti-inflammatory options rich in omega-3 fatty acids. Ensuring adequate protein supports satiety and maintains muscle mass, while reducing processed foods and added sugars, helps minimise hormonal fluctuations.

Medical Treatments for PCOS

Managing PCOS with Hormonal Therapies

Hormonal treatments address irregular menstrual cycles and androgen-related symptoms. Combined oral contraceptives regulate cycles while reducing androgen levels, improving acne and hirsutism. Anti-androgen medications like spironolactone specifically target excess hair growth and acne when hormonal contraceptives aren't suitable or sufficient.

Insulin-Sensitising Treatments for PCOS

Metformin, a medication originally used for diabetes, improves insulin sensitivity and helps restore more regular ovulation in many women with PCOS and can restore regular ovulation in many women with PCOS. It also supports modest weight loss and may reduce long-term diabetes risk. This medication works particularly well for women with significant insulin resistance or metabolic dysfunction.

Fertility and Ovulation Induction for PCOS

• Clomiphene citrate: First-line ovulation induction medication
• Letrozole: Increasingly preferred for PCOS-related fertility treatment
• Gonadotropins: Injectable hormones for more complex cases
• Ovarian drilling: A minimally invasive surgical option considered when medication doesn’t induce ovulation

Cosmetic and Symptom-Specific Treatments

• Topical treatments: For acne management
• Laser hair removal: For persistent hirsutism
• Hair loss treatments: Including minoxidil for androgenic alopecia
• Skin treatments: For acanthosis nigricans and other dermatological issues

Why a Multidisciplinary Approach Matters in PCOS Care

Optimal PCOS treatment requires coordination between multiple healthcare specialists. Gynaecologists manage reproductive aspects, endocrinologists address metabolic complications, dermatologists treat skin-related symptoms, and mental health professionals support psychological well-being. This collaborative approach ensures comprehensive care, addressing all aspects of this complex condition.

Living with PCOS: Long-term Monitoring

• Annual glucose screening detects diabetes development early.
• Lipid profile assessment monitors cardiovascular risk factors.
• Blood pressure checks identify hypertension.
• Mental health evaluation addresses mood and anxiety symptoms.
• Reproductive health monitoring tracks menstrual patterns and fertility goals.

Long-term PCOS management focuses on preventing complications while maintaining quality of life. Regular check-ups allow healthcare providers to adjust treatments as your needs evolve throughout different life stages.

Conclusion

Understanding PCOS empowers you to recognise symptoms early, seek timely medical care, and take proactive steps to manage your health effectively, seek appropriate care, and implement effective management strategies. This complex condition affects multiple body systems, but with proper diagnosis, treatment, and lifestyle modifications, most women with PCOS can lead healthy, fulfilling lives.

Metropolis Healthcare offers advanced diagnostic panels—including the PCOS Profile 1 and PCOS Profile 2 Tests—designed to provide clear insights into your hormonal and metabolic health, provides detailed insights into hormonal and metabolic function. With our extensive network of over 220 laboratories and 4,600 service centres, we bring reliable diagnostics directly to your doorstep through convenient home sample collection services.

FAQs

Can PCOS lead to weight gain?

Yes. PCOS often causes weight gain, especially around the abdomen, due to insulin resistance and hormonal imbalances.

Can stress make PCOS symptoms worse?

Yes. Chronic stress raises cortisol, which can increase insulin resistance and androgen levels, worsening symptoms.

Is PCOS genetic?

PCOS has a strong genetic link. Having a close relative with PCOS increases your risk, though genes alone don’t determine it.

Can men get PCOS?

No. PCOS affects the ovaries, but male relatives may share metabolic risks linked to PCOS.

What is the connection between PCOS and sleep apnoea?

Women with PCOS have a higher risk of sleep apnoea, especially if overweight, due to hormonal and metabolic factors.

Does PCOS affect the skin?

Yes. Acne, excess hair growth, hair thinning, and dark skin patches are common due to high androgen levels.

Can PCOS cause hair loss?

Yes. Elevated androgens can lead to male-pattern hair thinning on the scalp.

How often should women with PCOS have check-ups?

An annual check-up is recommended, with more frequent monitoring if managing complications like diabetes.

Can PCOS affect my menstrual cycle even after menopause?

No. Cycle issues resolve after menopause, but metabolic risks linked to PCOS can continue.