This study aimed to evaluate the prevalence and metabolic, hormonal and clinical characteristics of metabolic syndrome among women with polycystic ovary syndrome (PCOS) in the Oran region (western Algeria).

Cross-sectional study.

Outpatient endocrinology and gynaecology services in the Oran region, western Algeria.

A total of 313 women aged 16–45 years diagnosed with PCOS according to the Rotterdam 2004 criteria.

Prevalence of metabolic syndrome and differences in anthropometric (body mass index (BMI)), metabolic (fasting glucose and lipid profile), hormonal (gonadotropins, androgens, anti-Müllerian hormone (AMH), progesterone, vitamin D) and clinical features (hyperandrogenism, menstrual irregularity, infertility) between women with and without metabolic syndrome.

Of the 313 participants, 181 (57.9%) met the criteria for metabolic syndrome. These women had significantly higher BMI (26.70±5.93 vs 25.06±6.47 kg/m²; p=0.004), elevated fasting glucose (133.43±28.52 vs 105.41±28.54 mg/dL; p

More than half of women with PCOS exhibited metabolic syndrome, characterised by obesity, dyslipidaemia, insulin resistance and vitamin D deficiency. These findings highlight the need for early metabolic screening and holistic management in women with PCOS to reduce long-term cardiovascular and reproductive risks.