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Related Concept Videos

Infertility in Males01:23

Infertility in Males

Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
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Disorders of the Male Reproductive System

Men's health issues are increasingly recognized as significant, with several conditions posing common threats. Among these, testicular cancer is especially prevalent in younger men, particularly those aged 20 to 35 years. The disease often manifests as a painless mass in the testicles, sometimes accompanied by a sensation of heaviness or a dull ache.
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Male Sexual Response: Erection & Ejaculation

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Spermatogenesis

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Related Experiment Video

Updated: Jun 1, 2026

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility
04:22

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Published on: May 30, 2025

[Impotence among Icelandic males 1986-1991].

M Gottfredsson, G V Einarsson, G S Jonsson

    Laeknabladid
    |May 20, 2011
    PubMed
    Summary

    Impotence affects 7% of men, with abnormal nocturnal penile tumescence (NPT) increasing with age. Simple diagnostic tests can identify the causes of erectile dysfunction, which often involve psychological factors in younger men and somatic factors in older men.

    Area of Science:

    • Urology
    • Andrology
    • Men's Health

    Context:

    • Erectile dysfunction (impotence) is a common health concern affecting a significant percentage of the male population.
    • Understanding the prevalence and etiological factors of impotence is crucial for effective clinical management.
    • Previous research indicates a multifactorial nature of impotence, influenced by age and physiological conditions.

    Purpose:

    • To investigate the prevalence and etiological factors of impotence in a cohort of Icelandic males.
    • To evaluate the diagnostic utility of various methods, including nocturnal penile tumescence (NPT), penile-brachial index (PBI), hormonal profiles, and cavernosography.
    • To explore the correlation between diagnostic findings and patient demographics, particularly age.

    Summary:

    Related Experiment Videos

    Last Updated: Jun 1, 2026

    Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility
    04:22

    Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

    Published on: May 30, 2025

  • A retrospective study of 282 Icelandic males evaluated for impotence revealed abnormal nocturnal penile tumescence (NPT) in 55% of cases, with findings correlating positively with increasing age.
  • Penile-brachial index (PBI) was abnormal in only 8.2%, while hormonal profiles showed low testosterone in 12.1% (hypogonadism in 3.9%) and elevated prolactin in 2.8%.
  • Cavernosography identified venous leakage in 3.2% of patients, leading to surgical intervention. Psychological factors were noted to be more prevalent in younger men, with somatic causes increasing with age.
  • Impact:

    • This study highlights the importance of age-adjusted diagnostic approaches for impotence, with NPT being a sensitive indicator.
    • Findings suggest that simple diagnostic modalities can effectively determine the etiology of impotence in the majority of patients.
    • The research contributes to a better understanding of the prevalence and causes of erectile dysfunction, informing clinical practice and patient care.