Irregular periods are so common that many women simply learn to live with them. But your menstrual cycle is one of the clearest indicators of your overall hormonal health, and persistent irregularity is often the first sign of an underlying condition — most commonly Polycystic Ovary Syndrome (PCOS), also known as PCOD. Recognising the symptoms early makes it far easier to manage and protects your long-term health, including fertility.

What is PCOS?

PCOS is a hormonal disorder in which the ovaries produce higher-than-normal levels of male hormones (androgens). This hormonal imbalance can interfere with the release of eggs during the menstrual cycle, leading to irregular or missed periods and small fluid-filled sacs (follicles) on the ovaries. It is one of the most common hormonal conditions affecting women of reproductive age, and its prevalence has been rising, particularly in urban India where lifestyle factors play a strong role.

Common symptoms

PCOS presents differently from woman to woman, but the most frequent signs include:

• Irregular, infrequent, or absent periods — the hallmark symptom
• Excess hair growth on the face, chest, or back (hirsutism)
• Persistent acne or very oily skin
• Weight gain or difficulty losing weight, especially around the abdomen
• Thinning hair or hair loss on the scalp
• Darkening of the skin around the neck or underarms
• Difficulty conceiving

You do not need to have every symptom to have PCOS. Even two or three of these, combined with irregular cycles, are worth discussing with a doctor.

What causes it?

The exact cause is not fully understood, but several factors work together. Insulin resistance is central — when the body cannot use insulin efficiently, insulin levels rise and stimulate the ovaries to produce more androgens. Genetics also play a role, as PCOS often runs in families. Excess weight can worsen insulin resistance and hormonal imbalance, creating a cycle that reinforces itself. This is why lifestyle changes are such an important part of treatment.

Why irregular periods deserve attention

An occasional late period due to stress, travel, or illness is normal. But cycles that are consistently longer than 35 days, fewer than eight periods a year, or unpredictable heavy bleeding are not something to ignore. Left unmanaged, PCOS is linked to a higher long-term risk of type 2 diabetes, high blood pressure, and difficulty conceiving. Early evaluation allows you to address these risks before they develop.

How PCOS is diagnosed

There is no single test for PCOS. A gynaecologist will typically review your menstrual history, examine you for physical signs such as acne or excess hair, order blood tests to check hormone and sugar levels, and often recommend a pelvic ultrasound to look at the ovaries. This combination gives a clear picture and helps rule out other causes of irregular periods, such as thyroid problems. If you would like to understand the imaging involved, our overview of common diagnostic scans is a helpful starting point.

Treatment and lifestyle management

PCOS cannot be permanently cured, but it is very manageable. Treatment is tailored to your goals — whether that is regulating your cycle, managing symptoms like acne and excess hair, or planning a pregnancy.

• Lifestyle changes are the foundation. Even modest weight loss, a balanced low-glycaemic diet, and regular exercise can restore ovulation and improve symptoms significantly.
• Medication may be prescribed to regulate periods, improve insulin sensitivity, or manage androgen-related symptoms.
• Fertility support is available for women trying to conceive, as PCOS is one of the most common and treatable causes of infertility.

Because PCOS affects both reproductive and metabolic health, ongoing care with a specialist gives you the best results.

Planning a pregnancy with PCOS

Many women with PCOS conceive successfully with the right guidance. If you are planning a family, early counselling and structured antenatal care make a real difference. Our trimester-by-trimester prenatal care guide explains what to expect once you are pregnant.

When to see a specialist

If your periods are irregular, or you are noticing symptoms like unexplained weight gain, acne, or excess hair, do not wait for them to resolve on their own. A timely evaluation protects your fertility and long-term health. Consult an experienced gynaecologist and obstetrician in Anna Nagar for a personalised assessment.

To book an appointment, contact NIMS Micro Hospitals or call +91 80784 99444.