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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...
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...
Psychosexual Stages of Personality: Genital01:23

Psychosexual Stages of Personality: Genital

The genital stage is the final phase of Sigmund Freud's theory of psychosexual development, beginning at puberty, around age 12. During this stage, sexual energy shifts from self-focused interests to external individuals, marking the development of mature adult sexuality. Freud saw this phase as a time of sexual reawakening, with desires directed toward others outside the family. A healthy transition into this stage, according to Freud, signifies the emergence of two key aspects of adult...
Penis01:29

Penis

The penis serves a dual role in sexual reproduction and urination. It consists of three main regions: the glans penis, the body, and the root, each with distinct functions and unique anatomical features.
Anatomy of the Penis
The glans penis, or the head, is the terminal part of the penis and houses the external urethral orifice, the exit point for urine and semen. Covered by the prepuce, or foreskin, the glans is noted for its sensitivity and plays a key role in sexual pleasure. The body of the...
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).
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Self-Discrepancy Theory02:45

Self-Discrepancy Theory

One influential perspective on what motivates people's behavior is detailed in Tory Higgin's self-discrepancy theory (Higgins, 1987). He proposed that people hold disagreeing internal representations of themselves that lead to different emotional states.

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Related Experiment Video

Updated: Jul 5, 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

Distinguishing premature ejaculation from other sexual function disorders.

Martin Miner1, Wayne J G Hellstrom

  • 1Department of Family Medicine, Warren Alpert School of Medicine, Brown University, and Men's Health Center, Miriam Hospital, Providence, RI 02906, USA. martin_miner@brown.edu

Postgraduate Medicine
|May 10, 2008
PubMed
Summary

Many men suffer from sexual dysfunction, including premature ejaculation (PE) and erectile dysfunction (ED). Increased awareness of men's sexual health has encouraged more men to seek help for these common conditions.

Related Experiment Videos

Last Updated: Jul 5, 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:

  • Men's sexual health
  • Sexual dysfunction disorders

Background:

  • Premature ejaculation (PE) and erectile dysfunction (ED) are common male sexual disorders.
  • Men often delay seeking treatment due to embarrassment.
  • Increased awareness of men's sexual health, driven by treatments for ED, may improve willingness to seek help.

Purpose of the Study:

  • To highlight the importance of accurate diagnosis in treating sexual dysfunction.
  • To differentiate PE from ED and other sexual dysfunctions.
  • To underscore the need for new pharmacologic treatments for PE.

Main Methods:

  • Physician diagnosis relies on detailed patient symptom descriptions and sexual history.
  • Diagnosis of PE should include patient's personal distress and partner relationship difficulties.
  • Current PE treatments involve off-label use of medications for depression or ED.

Main Results:

  • Accurate diagnosis is crucial for effective sexual dysfunction treatment.
  • Distinguishing PE from ED requires careful clinical evaluation.
  • Limited pharmacologic options exist for PE, necessitating new drug development.

Conclusions:

  • New pharmacologic treatments for premature ejaculation are needed.
  • Physicians must accurately diagnose sexual dysfunctions, distinguishing PE from ED.
  • Addressing men's sexual health requires improved diagnostic and therapeutic approaches.