Irregular periods, acne or facial hair: could it be PCOS?

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Could these symptoms indicate PCOS?

An occasional late period or episode of acne does not automatically mean that you have PCOS. Repeatedly irregular periods—particularly with persistent acne, increased facial or body hair, scalp-hair thinning or difficulty conceiving—deserve medical assessment.

Polycystic ovary syndrome (PCOS) is a hormonal and metabolic condition that can affect menstrual cycles, ovulation, skin, hair and fertility. Symptoms differ between women, and some women with PCOS are not overweight.

Possible signs of PCOS

• Periods that are repeatedly irregular, widely spaced or absent.
• Unpredictable or unusually heavy bleeding.
• Persistent acne or oily skin.
• Increased hair on the face, chin, chest or abdomen.
• Thinning hair on the scalp.
• Weight gain or difficulty managing weight.
• Darkened, thickened skin around the neck, groin or under the breasts.
• Difficulty conceiving because ovulation is irregular.
• Anxiety, low mood or concerns about body image.

A woman does not need every symptom. Thyroid disorders, raised prolactin, certain medicines and other hormonal conditions can cause similar changes.

Does an ultrasound alone diagnose PCOS?

No. “Polycystic-looking ovaries” on ultrasound do not automatically mean that a woman has PCOS. PCOS may also sometimes be diagnosed without this appearance on a scan.

Diagnosis considers menstrual and ovulation history, signs or blood-test evidence of increased androgen activity and, when appropriate, ultrasound findings. Other causes must be considered. Adolescents require particular care because irregular cycles and acne can occur normally during the years after periods begin.

When should you arrange a consultation?

• Your periods repeatedly come more than five or six weeks apart.
• You have missed three consecutive periods.
• Your cycles have become persistently unpredictable.
• Facial or body hair is noticeably increasing.
• Acne continues despite routine skin care.
• Hair on your scalp is becoming thinner.
• You are trying to conceive and your periods are irregular.
• An ultrasound shows polycystic ovaries, but you have not had a complete assessment.
• Symptoms affect your confidence, relationships or emotional wellbeing.

What assessment may be needed?

Depending on your symptoms, a doctor may advise pregnancy testing, blood pressure and weight assessment, thyroid and prolactin tests, selected reproductive-hormone tests, blood sugar or diabetes-risk assessment, cholesterol testing, or a pelvic ultrasound. Not every patient requires every test.

Treatment depends on the main concern—cycle regulation, acne or excess hair, metabolic health, or planning a pregnancy. Lifestyle measures can help, but PCOS is not simply caused by poor lifestyle choices. Avoid hormonal medicines, metformin or unverified supplements without individual medical advice.