What Is PCOS?

Polycystic Ovary Syndrome (PCOS) is a common hormonal disorder among women of reproductive age. It occurs when the ovaries produce higher-than-normal levels of androgens (male hormones), leading to various symptoms such as irregular periods, erratic ovulation, and sometimes small fluid-filled sacs (cysts) on the ovaries.

PCOS affects approximately 10–13% of women of reproductive age worldwide, and studies indicate that up to 70% of women with the condition remain undiagnosed. It is one of the leading causes of female infertility and the most common cause of ovulatory dysfunction globally. Although PCOS can begin during adolescence, it is often detected when women experience difficulty trying to conceive.

What Causes PCOS?

The exact cause of PCOS remains incompletely understood, but it is believed to result from a combination of multiple factors:

• Insulin resistance — Many women with PCOS have cells that respond abnormally to insulin, leading to elevated insulin levels which can stimulate increased androgen production.
• Excess androgen production — Abnormally high levels of male hormones can disrupt ovulation and cause other physical symptoms.
• Genetics — PCOS often runs in families, suggesting a strong hereditary component.
• Inflammation — Some research links low-grade chronic inflammation to increased androgen production in women with PCOS.

Common Symptoms of PCOS

Symptoms vary widely among individuals, but a diagnosis typically requires at least two of the following three features:

• Irregular periods — Menstrual cycles that are too frequent, infrequent, or absent altogether.
• Signs of high androgen levels — Including excess facial or body hair (hirsutism), severe acne, and male-pattern hair thinning.
• Polycystic ovaries — Ovaries that are enlarged or contain numerous small follicles visible on an ultrasound.

Other related symptoms and effects may include:

• Weight gain or difficulty losing weight — Often linked to underlying insulin resistance.
• Skin changes — Oily skin and acne, particularly along the jawline.
• Infertility — Resulting from irregular or absent ovulation.
• Mood changes — Depression and anxiety are more frequently reported in women with PCOS.

How Is PCOS Diagnosed?

There is no single test to diagnose PCOS. Doctors typically evaluate medical history, perform physical exams, and may order blood tests to check hormone levels, along with a pelvic ultrasound to examine the ovaries. Diagnosis generally involves ruling out other conditions with similar symptoms and confirming at least two of the core features mentioned above.

Treatment Options

Treatment for PCOS is tailored to individual symptoms and goals, especially regarding fertility:

1. Lifestyle modifications
   Regular physical activity and a balanced diet help improve insulin sensitivity, support a healthy weight, and alleviate many PCOS symptoms. Even modest weight loss can help restore regular menstrual cycles.
2. Medication management
   Hormonal birth control pills can help regulate periods and reduce androgen-related symptoms such as acne and excess hair growth. Medications like metformin may be prescribed to improve insulin sensitivity.
3. Fertility treatments
   For women trying to get pregnant, ovulation-stimulating medications such as clomiphene may be recommended, sometimes alongside other fertility interventions.
4. Long-term health risk management
   Because PCOS is associated with long-term risks of type 2 diabetes, high cholesterol, and cardiovascular disease, ongoing health monitoring and healthy lifestyle habits are essential parts of long-term care.

When to See a Doctor?

Consult a healthcare provider if you experience persistent irregular periods, signs of high androgens (such as unwanted hair growth or severe acne), or difficulty becoming pregnant. Early diagnosis and management help control symptoms and reduce the risk of long-term complications.

Key Takeaways

PCOS is a common hormonal condition that affects far more women than are currently diagnosed. While there is no definitive cure, PCOS can be effectively managed through a combination of lifestyle changes, medications, and fertility care for those wishing to conceive. If you suspect you may have this condition, consulting a doctor is the best first step toward managing your symptoms and long-term health.

Prepared by: ภญ ปุณยนุช อังคะนาวิน

Sources

1. World Health Organization (WHO). Polycystic Ovary Syndrome
2. Mayo Clinic. Polycystic Ovary Syndrome (PCOS) – Symptoms and Causes
3. Cleveland Clinic. Polycystic Ovary Syndrome (PCOS): Symptoms & Treatment