Tehran University of Medical Sciences Journal of Family and Reproductive Health 1735-8949 8 3 2014 09 15 113 6 Leila Amini Department of Midwifery, School of Nursing & Midwifery, Iran University of Medical Sciences, Tehran, Iran. Kobra Valian Department of Midwifery, School of Nursing & Midwifery, Tehran University of Medical Sciences, Tehran, Iran. Homa Sdeghi Avvalshahr Midwifery Department, School of Nursing & Midwifery, Iran University of Medical Sciences, Tehran, Iran. Ali Montaeri Mental Health Research Group, Health Metrics Research Center, Iranian Institute for Health Sciences Research, ACECR, Tehran, Iran. 2015 10 16 Objective: To compare self-confidence in woman with and without PCOS according to their ages. Materials and methods: This comparative study was conducted on 400 women (100 with and 300 without PCOS) in clinics of Shahid Akbar-Abadi and Firouzgar Hospitals, from July 2012 to February 2013. SPSS-16 used for statistical analysis (SPSS; SPSS Inc., Chicago, IL, USA). Results: This study showed 98% of PCOS and 93% in non-PCOS groups had average self-confidence with scores of 15-25. None of women in PCOS group and 6.7% of non-PCOS group had high self-confidence (score > 25). There was a significant difference between two groups in term of self-confidence level (p < 0.001). There was no significant difference in self-confidence between age group ≤ 30 and age group > 30 in both group, but in PCOS group, self-confidence were significantly higher in both age group under 30 (p < 0.0001) and 30 and higher (p < 0.0001). Conclusion:Impaired self-confidence in PCOS groups (under 30 and 30 and higher age groups) in comparison with related value of non-PCOS group shows that mental health status in women with PCOS requires urgent psychological attention and support. https://jfrh.tums.ac.ir/index.php/jfrh/article/view/206 https://jfrh.tums.ac.ir/index.php/jfrh/article/download/206/201