ArticleThe world journal of men's health2025
Erectile Function and Sexual Activity Are Declining in the Younger Generation: Results from a National Survey in Japan.
Article in The world journal of men's health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Sexual Dysfunction and Lower Urinary Tract Dysfunction in Adults With Spina Bifida.International journal of urology : official journal of the Japanese Urological Association · 2026Observational
- Prevalence and Associated Factors of Erectile Dysfunction in Japanese Adolescent and Young Adult (AYA) Male Cancer Survivors.International journal of urology : official journal of the Japanese Urological Association · 2026Article
- Brain Activation Patterns during Sexual Arousal: A Comparative Time-Course Functional Magnetic Resonance Imaging Study in Postoperative Female-to-Male Transgender Individuals, Cisgender Men, and Premenopausal Women.The world journal of men's health · 2026Article
- Integrating Sperm Microscopy, Environmental Exposures, and Lifestyle Factors for Male Fertility Analysis: Protocol for the Nippon Semen and Environmental Exposure Database (N-SEED) Cross-Sectional Study.JMIR research protocols · 2026Article
- Prevalence and Factors Associated with Premature Ejaculation in Japan: First Nationwide Cross-Sectional Survey by the Japanese Society for Sexual Medicine.The world journal of men's health · 2026Article
- Back Muscle Strength Is Associated with Self-Reported Morning-Erection Frequency in Apparently Healthy Japanese Male University Students: A Cross-Sectional Study.Healthcare (Basel, Switzerland) · 2026Article
- Prevalence and associated factors of delayed ejaculation: insights from a nationwide internet-based, cross-sectional survey on male sexual dysfunction in Japan.Sexual medicine · 2025Article
- Article
- Distinct Clusters of Testosterone Levels, Symptoms, and Serum Trace Elements in Young Men: A Cross-Sectional Analysis.Nutrients · 2025Article
- The Actual State of Sexual Dysfunction in Newlywed Men Starting to Try for a Baby in Japan.Reproductive medicine and biologyArticle
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Authors and funding
14 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTwenty five years have passed since the first national survey on erectile dysfunction (ED) in Japan. The Japanese Society for Sexual Medicine conducted a nationwide survey on the actual status of sexual function targeting men over 20 years old in Japan using validated questionnaires commonly used in clinical practice. MATERIALS AND
methodsJapanese men aged 20 to 79 years participated in our online epidemiological study on sexual dysfunction. Erectile status was assessed by direct questioning and specific questionnaires. Risk factors and frequencies of sexual intercourse, masturbation, nocturnal erections, and feeling sexual desire were assessed. The prevalence of these risk factors was compared between men with and without ED. Prevalence and frequencies were calculated for each 5-year age group. Main outcomes were the prevalence and number of patients with ED and simultaneous evaluation of age-related variations.
resultsDirect questioning of the men revealed that 13.0% felt troubled by ED. Although 81.0% of them had at least some ED symptoms based on a Sexual Health Inventory For Men score of ≤21, the prevalence of men with ED by Erection Hardness Score (EHS), the most appropriate questionnaire for Japanese with low sexual activity, was 30.9%, indicating that 14,012,596 men have ED. Most risk factors were related with ED, whereas frequencies of sexual intercourse, masturbation, nocturnal erections, and feeling sexual desire were affected by aging. However, the low frequency of these factors in the young generation was surprising.
conclusionsThe EHS-based assessment revealed a prevalence of ED of 30.9%, which affected approximately 14 million men, and that the sexual desire, erection stiffness, orgasms, and satisfaction were lower than expected in young Japanese men, especially those aged 20 to 24 years, although those factors tended to worsen with aging. We believe that these findings actually reveal the current sexual status of men in Japan.
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