Polycystic Ovary Syndrome (PCOS)
In singapore

Dealing with irregular periods, unexpected weight gain, or persistent acne can be frustrating and concerning. For many women in Singapore, these symptoms may indicate Polycystic Ovary Syndrome (PCOS), a common hormonal condition affecting approximately 10% to 13% of women of reproductive age. Understanding PCOS and accessing appropriate care can significantly improve your quality of life and long-term health.

Dr. Harvard Lin

Obstetrician & Gynaecologist

MBBS (SG)|MRCOG (UK)|MMed (OBGYN) (SG)

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Types Causes & Risks Symptoms When to See a Doctor Diagnosis Treatment Complications & Prevention FAQ Conclusion

What is Polycystic Ovary Syndrome (PCOS)?

Polycystic Ovary Syndrome (PCOS) is a hormonal disorder characterised by an imbalance in reproductive hormones, particularly elevated levels of androgens (male hormones) in women. Despite its name, not all women with PCOS have cysts on their ovaries. This condition can affect multiple body systems, influencing metabolism, fertility, and appearance. In Singapore and across Asia, PCOS affects women of reproductive age, though many cases remain undiagnosed. It often emerges during puberty but can also develop later, sometimes in response to significant weight gain.

Types of PCOS

Insulin-Resistant PCOS

This is the most common type of PCOS. Women with this type have cells that don’t respond properly to insulin, resulting in higher insulin levels. The excess insulin can prompt the ovaries to produce more androgens, disrupting normal ovulation. This type often presents with weight gain, especially around the midsection, and difficulty losing weight.

Inflammatory PCOS

Chronic inflammation drives this type of PCOS, causing the ovaries to produce excess androgens. Women with inflammatory PCOS may have normal insulin levels but show markers of inflammation in blood tests. This type can occur in women of any weight and often presents with skin issues, headaches, or joint pain alongside typical PCOS symptoms.

Post-Pill PCOS

Some women develop PCOS symptoms after discontinuing birth control pills. This temporary condition occurs because the body struggles to resume normal hormone production after suppression by synthetic hormones. Symptoms typically resolve within several months but may require treatment support during the transition period.

Adrenal PCOS

This less common form arises when the adrenal glands produce higher-than-normal levels of androgens due to an abnormal stress response. Women with this type typically have elevated DHEA-S levels while maintaining normal testosterone and insulin levels. Managing stress is an important aspect of supporting overall health.

Causes

The exact cause of PCOS is not fully understood, but several factors are known to contribute:

Hormonal imbalance: Elevated androgen levels interfere with normal ovulation
Insulin resistance: High insulin levels may stimulate excess androgen production
Low-grade inflammation: Chronic inflammation can lead to increased androgen levels
Disrupted hormone signalling: Abnormal communication between the brain and ovaries

Risk Factors

Several factors can increase the likelihood of developing PCOS:

Family history: Having a mother or sister with PCOS
Obesity: Excess weight, particularly around the abdominal, can worsen insulin resistance
Ethnicity: Asian women may experience PCOS symptoms at lower BMIs
Premature adrenarche: Early development of pubic hair or other signs of androgen activity before age 8
Gestational diabetes history: Previous pregnancy complications indicate metabolic issues
Sedentary lifestyle: Limited physical activity contribute to insulin resistance
High stress levels: Chronic stress can affect hormone balance

Signs & Symptoms

Mild Symptoms

Irregular periods occurring every 35-40 days
Mild acne on the face or back
Slight increase in facial hair growth
Gradual weight gain of 2-5kg
Occasional mood changes
Mild thinning of scalp hair

Moderate Symptoms

Periods occurring less than 8 times yearly
Persistent cystic acne requiring treatment
Noticeable facial and body hair growth
Weight gain of 5-10kg despite normal diet
Difficulty conceiving after 6-12 months
Darkened skin patches (acanthosis nigricans)
Significant mood swings or anxiety

Severe Symptoms

Complete absence of periods for 3 or more months
Severe facial or body hair growth requiring management
Rapid weight gain exceeding 10kg
Severe insulin resistance or pre-diabetes
Depression requiring medical intervention
Male-pattern baldness
Sleep apnoea
Chronic pelvic pain

PCOS symptoms often emerge during puberty but may only become apparent later. Symptoms differ between individuals, with some experiencing primarily reproductive issues and others facing metabolic or skin-related changes.

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When to See a Doctor

Seeking medical attention for PCOS symptoms ensures timely diagnosis and reduces the risk of long-term complications. Consult a gynaecologist immediately if you experience:

Absence of periods for three consecutive months (not due to pregnancy)
Excessive hair growth affecting daily life or self-esteem
Rapid, unexplained weight gain (over 5kg within three months)
Severe acne that does not improve with usual treatments
Difficulty conceiving after 12 months of trying (or 6 months if over 35 years old)
Signs of diabetes such as excessive thirst or frequent urination
Severe mood changes affecting work or relationships

Early management of PCOS, especially during the reproductive years, may help reduce risks such as diabetes or metabolic problems later in life. During your first consultation, the gynaecologist will discuss your symptoms, medical history, and family history. The appointment typically includes a physical examination and discussion about necessary diagnostic tests. Many women find relief in receiving a proper diagnosis after years of unexplained symptoms.

Diagnosis & Testing Methods

Diagnosing PCOS involves a thorough evaluation, as no single test confirms the condition. A diagnostic is typically made if at least two of the following are present: irregular ovulation, signs of excess androgens, or polycystic ovaries seen on ultrasound.

Blood tests are commonly used to help confirm PCOS diagnosis. Hormone panels measure testosterone, DHEA-S, and other androgens to identify hormonal imbalances. Additional tests assess thyroid function, prolactin levels, and FSH/LH ratios to exclude other conditions. Metabolic screening includes fasting glucose and insulin levels to evaluate insulin resistance, while lipid profiles check cardiovascular risk factors.

Transvaginal ultrasound examines the ovaries for multiple small follicles (often mistakenly called cysts) and measures ovarian volume. The scan also assesses endometrial thickness, which may be increased due to irregular periods. This painless procedure takes approximately 15-20 minutes.

Physical examination includes measuring blood pressure, calculating BMI, and assessing hair growth patterns using standardised scoring systems. The gynaecologist examines for acanthosis nigricans and other physical signs of hormonal imbalance.

Results typically become available within 3-7 days, allowing prompt treatment initiation once diagnosis is confirmed.

Treatment Options Overview

Hormonal Treatments

Combined oral contraceptives are often recommended for women who are not currently trying to conceive. These regulate menstrual cycles, reduce androgen levels, and improve acne and hirsutism. The specific formulation is selected based on individual symptoms and risk factors. Treatment typically continues for at least six months to see noticeable improvement in skin and hair symptoms.

Insulin-Sensitising Medications

Metformin, commonly used for diabetes, improves insulin resistance in PCOS patients. This medication helps restore regular ovulation, support weight management, and lower long-term metabolic risks. Starting doses are gradually increased to minimise gastrointestinal side effects. Many women experience improved menstrual regularity within 3-6 months of treatment.

Anti-Androgen Medications

Spironolactone can reduce unwanted hair growth and improves acne by blocking the effects of androgen. This medication requires concurrent contraception due to potential effects on male foetal development. Results for hirsutism typically become noticeable after 6-9 months of consistent use.

Fertility Medications

For women seeking pregnancy, ovulation induction medications like letrozole or clomiphene citrate stimulate egg development. Treatment involves careful monitoring through blood tests and ultrasounds. Success rates vary but many women achieve pregnancy within 3-6 treatment cycles.

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Complications if Left Untreated

PCOS can affect more than reproductive health and may influence long-term wellbeing. Women with PCOS often experience insulin resistance, which increases the likelihood of developing type 2 diabetes at an earlier age compared with women without the condition.

Cardiovascular complications represent another serious concern. PCOS is associated with a higher risk of hypertension, abnormal cholesterol levels, and heart disease. The combination of insulin resistance, obesity, and hormonal imbalances creates conditions for cardiovascular problems.

Irregular menstrual cycles can lead to prolonged exposure of the uterine lining to oestrogen, which may increase the risk of endometrial changes. Without regular menstrual shedding, the uterine lining continues to thicken, potentially leading to abnormal cell changes. PCOS associates with increased risks of sleep apnoea, fatty liver disease, and pregnancy complications including gestational diabetes and preeclampsia.

Prevention

While genetic factors make complete prevention of PCOS impossible, certain lifestyle measures and monitoring can help reduce symptom severity and support overall health:

Maintain a healthy weight through balanced nutrition and regular exercise. For high-risk individuals, preventing excessive weight gain during adolescence proves particularly important. Focus on whole foods, lean proteins, and complex carbohydrates while limiting processed foods and added sugars.

Exercise regularly with a combination of aerobic activity and strength training. Aim for at least 150 minutes of moderate-intensity exercise weekly. Resistance training particularly benefits insulin sensitivity and hormone balance.

Manage stress effectively: Maintaining regular sleep patterns and finding ways to manage stress may help support hormone regulation and overall health.

Early monitoring and diet: Girls with premature adrenarche or a family history of PCOS may benefit from regular check-ups, while a Mediterranean-style diet rich in omega-3s, antioxidants, and fibre can support metabolic health and reduce inflammation.

Frequently Asked Questions (FAQ)

Can PCOS be cured completely?

PCOS is a chronic condition, but its symptoms can be managed effectively. Treatment focuses on controlling symptoms and reducing the risk of long-term complications. Many women see improvements with appropriate treatments and lifestyle adjustments. Weight management and hormonal changes, such as those occurring at menopause, can also help reduce symptoms. The focus is on ongoing management tailored to each individual’s needs.

Will PCOS affect my ability to have children?

PCOS can make conceiving more challenging, but many women with PCOS are able to become pregnant with appropriate management. Treatments such as ovulation induction medications can help restore ovulation, and weight management may support fertility in some cases. Early diagnosis and management can help address fertility concerns and support women planning for pregnancy.

How long does PCOS treatment take to show results?

Treatment timelines vary depending on the specific symptoms being addressed. Menstrual regulation often improves within 1-3 months of starting hormonal treatment. Acne typically responds within 3-6 months, while excessive hair growth may require 6-12 months to show significant improvement. Weight loss and metabolic improvements occur gradually with lifestyle changes. Fertility treatments work on monthly cycles, with many women conceiving within 3-6 treatment cycles.

Is PCOS hereditary? Should I worry about my daughters?

PCOS can run in families, so daughters of affected women may have a higher risk. Genetics alone doesn’t mean they will develop PCOS. Lifestyle factors like diet, exercise, and weight management influence how the condition may appear.

Can diet alone manage PCOS symptoms?

While dietary modifications significantly impact PCOS symptoms, most women benefit from comprehensive treatment approaches. Low glycaemic index diets improve insulin resistance and can restore ovulation in some cases. Weight loss through diet helps reduce androgen levels and improves metabolic parameters. Symptoms like hirsutism or severe hormonal imbalances typically require medical treatment alongside dietary changes. The effective approach combines appropriate nutrition with medical treatments tailored to individual symptoms and goals.

What happens to PCOS after menopause?

PCOS symptoms often change after menopause but don’t disappear entirely. While reproductive symptoms like irregular periods resolve, metabolic aspects persist or worsen. Post-menopausal women with PCOS maintain higher risks for diabetes, cardiovascular disease, and metabolic syndrome. Some women experience improvement in hirsutism after menopause due to overall decreased hormone production. Long-term health management focuses on preventing cardiovascular and metabolic complications.

Conclusion

Polycystic Ovary Syndrome (PCOS) can affect reproductive health, metabolism, and emotional wellbeing. Although PCOS presents complex challenges, treatment can be tailored to individual needs and life goals. Early evaluation and ongoing management help prevent long-term complications and support overall health. Whether your concerns involve menstrual irregularities, fertility, or metabolic wellbeing, consulting a gynaecology specialist can provide guidance on appropriate care and symptom management.

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Dr. Harvard Lin

Obstetrician & Gynaecologist

MBBS (SG)|MRCOG (UK)|MMed (OBGYN) (SG)

Dr. Harvard Lin is renowned for his expertise in female pelvic medicine and reconstructive surgery.

Dr. Lin’s journey in medicine began at the prestigious National University of Singapore, where he earned his Bachelor of Medicine and Bachelor of Surgery (MBBS). His commitment to excellence led him to further his education by becoming a Member of the Royal College of Obstetricians and Gynaecologists (MRCOG) through the Royal College of Obstetricians and Gynaecologists in the United Kingdom. He also holds a Master of Medicine (Obstetrics and Gynaecology) from the National University of Singapore.

As the Chief Coordinator of Gynaecologic Services at the National University Health System (NUHS), Dr. Lin plays a pivotal role in ensuring the highest quality care for women’s health. His leadership is also evident in his position as the Deputy Clinical Director of Obstetrics and Gynaecology at NUHS, where he contributes to shaping gynaecologic practices and growth across the cluster including Ng Teng Fong Hospital, Alexandra Hospital and Jurong Medical Centre.

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