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Related Concept Videos

Disorders of the Male Reproductive System01:20

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.
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra. Symptoms...
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...
Male Sexual Response: Erection & Ejaculation01:17

Male Sexual Response: Erection & Ejaculation

Sexual stimulation can take various forms, such as physical touch and visual or auditory cues. When this happens, the parasympathetic reflex in the sacral portion of the spinal cord is activated. This reflex stimulates the release of nitric oxide (NO), which then dilates the arterioles in the penis, increasing blood flow to the erectile tissues - the corpora cavernosa and corpus spongiosum.
The blood filling the erectile tissues compresses the veins, which helps to prevent blood from leaving...
Treatment for Pulmonary Arterial Hypertension: Phosphodiesterase Inhibitors01:28

Treatment for Pulmonary Arterial Hypertension: Phosphodiesterase Inhibitors

Phosphodiesterase 5 (PDE5) inhibitors are potent enzymes that function to hydrolyze cyclic nucleotides to their corresponding 5' monophosphates. Their unique biochemical properties have been applied in treating Pulmonary Arterial Hypertension (PAH).
Among the PDE5 inhibitors, sildenafil (Revatio) stands out as a competitive and selective inhibitor. It operates by elevating cellular levels of cGMP and augmenting signaling through the cGMP-PKG pathway, promoting vasodilation. Upon oral...
Nursing Assessment of the Genitourinary System I: Health History01:21

Nursing Assessment of the Genitourinary System I: Health History

The genitourinary system is critical to maintaining fluid balance, waste elimination, and reproductive function. Nurses play a vital role in assessing this system, beginning with a thorough health history. This process involves gathering patient information, identifying risk factors, and recognizing symptoms of genitourinary disorders. Early detection is vital for timely interventions and management.1. Gathering Patient InformationA complete health history includes the patient’s personal,...
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...

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Related Experiment Video

Updated: Jun 4, 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

Diagnosing impotence.

A Morales

    Canadian Family Physician Medecin De Famille Canadien
    |February 2, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Organic factors may cause up to 50% of impotence cases, challenging previous beliefs. Comprehensive evaluation including medical tests and psychological assessment is crucial for accurate diagnosis and effective treatment of erectile dysfunction.

    Related Experiment Videos

    Last Updated: Jun 4, 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

    Area of Science:

    • Urology
    • Andrology
    • Psychology

    Background:

    • Historically, psychogenic factors were believed to cause 95% of impotence cases.
    • Recent research suggests organic factors contribute to approximately 50% of erectile dysfunction (ED).

    Purpose of the Study:

    • To highlight the significant role of organic factors in impotence.
    • To outline a comprehensive diagnostic approach for evaluating erectile dysfunction.

    Main Methods:

    • Detailed patient history and physical examination.
    • Psychological evaluation and partner interview.
    • Hormonal assays (serum testosterone), urological assessment, and nocturnal penile tumescence (NPT) measurement.

    Main Results:

    • Organic factors are implicated in a substantial proportion of ED cases, contrary to prior assumptions.
    • A multi-faceted diagnostic strategy is necessary to identify the underlying etiology of impotence.

    Conclusions:

    • Diagnosis of impotence requires a thorough and empathetic approach.
    • Referral to a specialized sexual dysfunction clinic is recommended for complex or obscure cases.