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Updated: May 31, 2026

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility
Published on: May 30, 2025
Latent structures of male sexual functioning
Joana Carvalho1, Armando Luís Vieira, Pedro Nobre
1Departamento de Educação e Psicologia, Universidade de Trás-os-Montes e Alto Douro, Vila Real, Portugal. joana.pereira.carvalho@gmail.com
Male sexual response models differ between men with and without sexual difficulties. Findings suggest distinct dimensions of sexual desire, erectile function, and premature ejaculation for assessment and diagnosis.
Area of Science:
- Male sexual health research
- Psychiatry
- Urology
Background:
- Current diagnostic criteria for male sexual dysfunction are debated.
- Traditional models of male sexual response may not fully capture complex functioning.
- Emerging data suggest alternative conceptualizations for male sexual health.
Purpose of the Study:
- To investigate and compare four alternative conceptual models of male sexual response.
- To utilize structural equation modeling to analyze these models.
- To provide data for refining diagnostic and assessment tools for male sexual dysfunction.
Main Methods:
- A modified International Index of Erectile Function questionnaire was employed.
- Data were collected from 1,558 Portuguese men.
- Participants were stratified into groups based on the presence or absence of sexual difficulties.
Main Results:
- Men with sexual difficulties showed a two-factor structure: general sexual function (desire, erection, orgasm) and premature ejaculation.
- Sexually healthy men exhibited a three-factor structure: sexual desire, combined erectile and orgasmic function, and premature ejaculation.
- Strong discriminant validity supported these dimensions as distinct phenomena.
Conclusions:
- Erectile function appears independent of sexual desire in sexually healthy men.
- Ejaculatory control may represent a distinct phenomenon from orgasmic disorders.
- A general sexual distress disorder may characterize sexually dysfunctional men.
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