March 25, 2025 06:18 AM IST

Sometimes, the body gives small clues that something may not be quite right. A period that keeps arriving late, sudden changes in your skin, or hair growing in places where it never did before may seem like separate issues. But when several of these changes happen together, they can sometimes point to an underlying hormonal condition such as polycystic ovary syndrome, commonly known as PCOS.

PCOS is one of the most common hormonal conditions affecting women of reproductive age. It can affect periods, ovulation, skin, hair, metabolism and fertility. However, the symptoms can vary considerably from one woman to another. You do not need to have every symptom to have PCOS.

Recognising the early signs of PCOS can encourage you to speak with a healthcare professional sooner rather than simply accepting these changes as “normal.”

Here are 10 signs worth knowing.

1. Irregular or missed periods

One of the most noticeable early signs of PCOS is a change in your menstrual cycle.

Your periods may become irregular, arrive several weeks late, or disappear for months at a time. Some women may also experience unpredictable or unusually heavy bleeding when their period does arrive.

This can happen because PCOS may interfere with regular ovulation. However, irregular periods do not automatically mean you have PCOS. Stress, changes in weight, excessive exercise, pregnancy and thyroid problems can also affect your menstrual cycle.

2. Excess facial or body hair

Have you noticed thicker, darker hair appearing on your chin, upper lip, chest, abdomen or other areas?

Excess hair growth, medically known as hirsutism, can occur when androgen levels are higher than usual. Androgens are hormones that are present in everyone, but higher levels or increased sensitivity to them can contribute to symptoms such as unwanted facial or body hair.

For some women, this may be one of the first changes they notice.

3. Persistent or severe acne

Acne isn't only a teenage problem.

If you're experiencing persistent acne well into adulthood, particularly around the lower face, jawline or chin, hormones may sometimes play a role. PCOS can be associated with higher androgen activity, which may contribute to increased oil production and acne.

Of course, adult acne has many possible causes, so acne alone is not enough to indicate PCOS.

4. Thinning hair or hair loss

While some women with PCOS notice more hair growth on the face or body, others may notice the opposite on their scalp.

Hair may become thinner around the crown or parting, or you may notice increased hair shedding. This can happen when hormonal changes affect the normal hair-growth cycle.

If hair thinning is sudden or significant, it is worth discussing it with a doctor because thyroid conditions, nutritional deficiencies, stress and other hormonal problems can also cause hair loss.

5. Unexplained weight gain or difficulty losing weight

Some women with PCOS notice changes in their weight or find it harder to lose weight despite making changes to their diet and physical activity.

PCOS is associated with metabolic changes, including insulin resistance in some women. Insulin resistance means the body's cells do not respond to insulin as effectively as they should.

That said, weight is not a requirement for PCOS. Women who are at a healthy weight can also have PCOS, so the condition should never be ruled out simply because someone is not overweight.

6. Dark, thickened patches of skin

Have you noticed darker, slightly thickened skin around your neck, underarms or other skin folds?

This can sometimes be a condition called acanthosis nigricans. It appears as darker, velvety-looking patches of skin and can be associated with insulin resistance.

It does not mean that you have PCOS by itself, but when it occurs alongside irregular periods, acne, excess hair growth or other symptoms, it may be something worth discussing with a healthcare professional.

7. Difficulty getting pregnant

For some women, PCOS is first discovered when they begin trying to conceive.

Because PCOS can affect ovulation, some women may not release an egg regularly. Irregular or absent ovulation can make it more difficult to predict the fertile window and may reduce the chances of becoming pregnant.

This does not mean pregnancy is impossible. Many women with PCOS do become pregnant, sometimes naturally and sometimes with medical support.

8. Oily skin

If your skin suddenly becomes much oilier than usual, hormones could be contributing to the change.

Higher androgen activity can stimulate the sebaceous glands, increasing oil production. This can occur alongside acne and other skin changes associated with PCOS.

Again, oily skin alone is not a diagnosis. But when several hormonal symptoms appear together, it can be useful information to share with your doctor.

9. Skin tags

Small, soft pieces of extra skin around the neck, underarms or other areas can sometimes appear in people with insulin resistance.

These are called skin tags. They are common and usually harmless, so having them does not mean that you have PCOS.

However, if you notice multiple skin tags together with irregular periods, unwanted hair growth, acne or other possible PCOS symptoms, mentioning them during a medical consultation can provide additional context.

10. Several symptoms appearing together

Perhaps the most important sign is not one symptom at all.

You might notice that your periods have become irregular while you're also dealing with persistent acne, increased facial hair, scalp hair thinning or changes in your weight. When several of these symptoms occur together, it is worth looking beyond each symptom individually.

PCOS is diagnosed based on a combination of clinical features and, where appropriate, blood tests or ultrasound, while other possible causes need to be considered. You do not necessarily need to have ovarian cysts visible on an ultrasound to have PCOS.

When should you see a doctor?

If your periods have become consistently irregular, you've missed several periods, or you're experiencing symptoms such as unwanted facial hair, persistent acne, hair thinning or difficulty becoming pregnant, consider speaking with a doctor or gynaecologist.

There is no single symptom that confirms PCOS. A healthcare professional may ask about your menstrual history, symptoms, medical history and family history and may recommend blood tests or other investigations depending on your situation.

It is also important not to diagnose yourself based on an online symptom list. Many PCOS symptoms can occur for other reasons, and getting the right diagnosis is the first step toward appropriate care.

The bottom line

PCOS can look different from one woman to another. For some, irregular periods may be the first clue. For others, unwanted facial hair, acne, hair loss, weight changes or fertility problems may bring attention to an underlying hormonal issue.

The important thing is not to ignore persistent changes in your body.

If something feels different from your usual pattern, especially when several symptoms appear together, talk to a healthcare professional. Recognising the early signs of PCOS can help you seek an evaluation and understand what may be happening rather than continuing to wonder whether the changes are simply part of everyday life.