ArticleInternational journal of impotence research2018
Does underestimated penile size impact erectile function in healthy men?
Article in International journal of impotence research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 22 citations in OpenAlex.
- Are men aware of normal penile length and sexual function? A narrative review of the literature.Asian journal of andrology · 2026Review
- Visual illusion in male self-assessment of penile dimensions: a clinical study on penile length perception bias between flaccid and erect states.Sexual medicine · 2025Article
- Reasons for Genital Dissatisfaction in a Sample of Brazilian Men.Archives of sexual behavior · 2024Article
- Worldwide Temporal Trends in Penile Length: A Systematic Review and Meta-Analysis.The world journal of men's health · 2023Article
- Factors Associated with Satisfaction with Male Genital Self-Image in Brazil.Archives of sexual behavior · 2023Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of this study is to assess the impact of objective (stretched) and subjective penile size in the erectile function in a urological check-up program on a cross-sectional study including 689 men aged 35-70 years. IIEF-5 questionnaire, physical examination (penile length, prostate volume, blood pressure, body mass index-BMI), metabolic syndrome (MS), comorbidities, habits (sexual intercourse frequency, physical activity, alcohol, and tobacco use), level of education, serum glucose, total testosterone, estradiol, PSA, lipid profile, and self-perceptions (ejaculation time and subjective penile size) were examined in multivariate models using logistic and linear regressions. Penile objective mean length was 13.08 cm ± 2.32 and 67 (9.72%) patients referred small penis self-perception. Seventy-six (11.03%) participants had severe erectile dysfunction (ED), 75 (10.88%) had mild to moderate and moderate ED, 112 (16.25%) had mild ED and 426 (61.83%) had no ED. Risk factors for ED that held statistical significance were self-perceived small penis (OR = 2.23, 95% CI 1.35-3.69, p = .0017), sexual intercourse frequency (per week) (OR = 0.45, 95% CI 0.38-0.52, p < .0001), satisfactory ejaculation time (no vs. yes, OR = 2.06, 95% CI 1.46-2.92, p < .0001), comorbidity (yes vs. no, OR = 2.01, 95% CI 1.46-2.76, p < .0001), age >65 years (OR = 2.93, 95% CI 1.53-5.61, p < .0001), tobacco use (yes vs. no, OR = 1.41, 95% CI 1.02-1.96, p < .0375), regular physical activity (no vs. yes, OR = 1.59, 95% CI 1.13-2.23, p < .0083), serum total testosterone < 200 ng/dl (OR = 3.48, 95% CI 1.69-7.16, p = 0.0009), serum glucose > 100 mg/dl (OR = 1.69, 95% CI 1.18-2.43, p = 0.0044) and systolic blood pressure > 130 mmHg (OR = 1.60, 95% CI 1.16-2.19, p = 0.0037). Results suggest that in addition to previously reported risk factors, patient's subjective impressions of penile size negatively impacts sexual life in about 10% of men considered healthy, while objective penile length does not play significant role in erectile function.
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Registered trials
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