Erectile Function and Sexual Activity Are Declining in the Younger Generation: Results from a National Survey in Japan
Purpose: Twenty 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 commo...
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| Format: | Article |
| Language: | English |
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Korean Society for Sexual Medicine and Andrology
2025-01-01
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| Series: | The World Journal of Men's Health |
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| author | Akira Tsujimura Shinichiro Fukuhara Koji Chiba Tsuyoshi Yoshizawa Hikaru Tomoe Masato Shirai Kazunori Kimura Eiji Kikuchi Eri Maeda Yoshikazu Sato Atsushi Nagai Koichi Nagao Haruaki Sasaki |
| author_facet | Akira Tsujimura Shinichiro Fukuhara Koji Chiba Tsuyoshi Yoshizawa Hikaru Tomoe Masato Shirai Kazunori Kimura Eiji Kikuchi Eri Maeda Yoshikazu Sato Atsushi Nagai Koichi Nagao Haruaki Sasaki |
| author_sort | Akira Tsujimura |
| collection | DOAJ |
| description | Purpose: Twenty 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 Methods: Japanese 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.
Results: Direct 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.
Conclusions: The 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. |
| format | Article |
| id | doaj-art-20ccf4e7c8c248878e7a620007ffe2c9 |
| institution | Kabale University |
| issn | 2287-4208 2287-4690 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Korean Society for Sexual Medicine and Andrology |
| record_format | Article |
| series | The World Journal of Men's Health |
| spelling | doaj-art-20ccf4e7c8c248878e7a620007ffe2c92025-01-03T06:49:01ZengKorean Society for Sexual Medicine and AndrologyThe World Journal of Men's Health2287-42082287-46902025-01-0143123924810.5534/wjmh.240137Erectile Function and Sexual Activity Are Declining in the Younger Generation: Results from a National Survey in JapanAkira Tsujimura0https://orcid.org/0000-0002-3821-5184Shinichiro Fukuhara1https://orcid.org/0000-0003-1336-4316Koji Chiba2https://orcid.org/0000-0001-7600-7813Tsuyoshi Yoshizawa3https://orcid.org/0000-0002-6257-3117Hikaru Tomoe4https://orcid.org/0000-0001-7163-6020Masato Shirai5https://orcid.org/0000-0002-2120-3611Kazunori Kimura6https://orcid.org/0000-0002-2473-4776Eiji Kikuchi7https://orcid.org/0000-0002-1624-6676Eri Maeda8https://orcid.org/0000-0002-3969-7664Yoshikazu Sato9https://orcid.org/0000-0002-2205-1357Atsushi Nagai10https://orcid.org/0000-0002-5871-1775Koichi Nagao11https://orcid.org/0000-0003-2798-4567Haruaki Sasaki12https://orcid.org/0009-0004-0903-1871Department of Urology, Juntendo University Urayasu Hospital, UrayasuDepartment of Urology, Osaka University Graduate School of Medicine, SuitaDepartment of Urology, Kobe University Graduate School of Medicine, KobeDepartment of Urology, Nihon University School of Medicine, TokyoDepartment of Urology, Sayama Sougou Clinic, SaitamaDepartment of Urology, Juntendo University Urayasu Hospital, UrayasuDepartment of Clinical Pharmaceutics, Nagoya City University Graduate School of Medical Sciences, NagoyaDepartment of Urology, St. Marianna University School of Medicine, KawasakiDepartment of Public Health, Faculty of Medicine, Hokkaido University, SapporoDepartment of Urology, Sanjukai Urological Hospital, SapporoManagement Department, Kawasaki Medical School Hospital, KurashikiDepartment of Urology, Faculty of Medicine, Toho University, TokyoDepartment of Urology, Showa University Fujigaoka Hospital, YokohamaPurpose: Twenty 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 Methods: Japanese 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. Results: Direct 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. Conclusions: The 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.coitusmasturbationpenile erectionsexual arousalsexual dysfunctions; psychological |
| spellingShingle | Akira Tsujimura Shinichiro Fukuhara Koji Chiba Tsuyoshi Yoshizawa Hikaru Tomoe Masato Shirai Kazunori Kimura Eiji Kikuchi Eri Maeda Yoshikazu Sato Atsushi Nagai Koichi Nagao Haruaki Sasaki Erectile Function and Sexual Activity Are Declining in the Younger Generation: Results from a National Survey in Japan The World Journal of Men's Health coitus masturbation penile erection sexual arousal sexual dysfunctions; psychological |
| title | Erectile Function and Sexual Activity Are Declining in the Younger Generation: Results from a National Survey in Japan |
| title_full | Erectile Function and Sexual Activity Are Declining in the Younger Generation: Results from a National Survey in Japan |
| title_fullStr | Erectile Function and Sexual Activity Are Declining in the Younger Generation: Results from a National Survey in Japan |
| title_full_unstemmed | Erectile Function and Sexual Activity Are Declining in the Younger Generation: Results from a National Survey in Japan |
| title_short | Erectile Function and Sexual Activity Are Declining in the Younger Generation: Results from a National Survey in Japan |
| title_sort | erectile function and sexual activity are declining in the younger generation results from a national survey in japan |
| topic | coitus masturbation penile erection sexual arousal sexual dysfunctions; psychological |
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