Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Infertility in Males01:23

Infertility in Males

683
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...
683
Disorders of the Male Reproductive System01:20

Disorders of the Male Reproductive System

5.4K
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....
5.4K
Sperm Transport01:15

Sperm Transport

4.9K
The journey of sperm from its origin to the point of ejaculation begins within the seminiferous tubules of the testis. Here, Sertoli cells produce fluid that propels non-motile sperm through a series of conduits, starting with the straight tubules leading to the rete testis. This interconnected network of tubules acts as the initial pathway for sperm, guiding them into the efferent ductules and then into the epididymis for maturation.
The maturation phase occurs in the epididymis, where sperm...
4.9K
Spermatogenesis01:41

Spermatogenesis

124.7K
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
124.7K
Sperm Structure and Semen Composition01:22

Sperm Structure and Semen Composition

14.3K
During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
14.3K
Male Sexual Response: Erection & Ejaculation01:17

Male Sexual Response: Erection & Ejaculation

27.4K
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...
27.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Downregulation of spermatogenesis-associated transcripts in the spermatozoa of idiopathic infertile men.

Andrology·2025
Same author

Iatrogenic male infertility: medical and surgical treatments that impair male fertility.

Fertility and sterility·2021
Same author

Highly conserved sperm function-related transcripts across three species: human, rat and mouse.

Reproductive toxicology (Elmsford, N.Y.)·2021
Same author

Humor in reproductive medicine - the good, the bad, and the funny.

Fertility and sterility·2021
Same author

Diagnosis and treatment of infertility in men: AUA/ASRM guideline part II.

Fertility and sterility·2020
Same author

Diagnosis and treatment of infertility in men: AUA/ASRM guideline part I.

Fertility and sterility·2020

Related Experiment Video

Updated: Apr 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

1.3K

Introduction: Ejaculatory problems and male infertility.

Mark Sigman1

  • 1Warren Alpert Medical School of Brown University and the Miriam and Rhode Island Hospitals, Providence, Rhode Island.

Fertility and Sterility
|October 4, 2015
PubMed
Summary
This summary is machine-generated.

Ejaculatory dysfunctions can harm male fertility and are often poorly understood. This review clarifies terminology and covers causes, evaluation, and management of these conditions.

Keywords:
Ejaculatory dysfunctionanejaculationanorgasmialack of emissionretrograde ejaculation

More Related Videos

Author Spotlight: Advanced Treatment of Seminal Duct Blockage Employing Endoscopy-Mediated Semen Channel Refluviation
03:51

Author Spotlight: Advanced Treatment of Seminal Duct Blockage Employing Endoscopy-Mediated Semen Channel Refluviation

Published on: December 8, 2023

5.4K
Author Spotlight: A Simple and Cost-Effective Method for Leukocyte Analysis in Semen
04:36

Author Spotlight: A Simple and Cost-Effective Method for Leukocyte Analysis in Semen

Published on: January 19, 2024

5.8K

Related Experiment Videos

Last Updated: Apr 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

1.3K
Author Spotlight: Advanced Treatment of Seminal Duct Blockage Employing Endoscopy-Mediated Semen Channel Refluviation
03:51

Author Spotlight: Advanced Treatment of Seminal Duct Blockage Employing Endoscopy-Mediated Semen Channel Refluviation

Published on: December 8, 2023

5.4K
Author Spotlight: A Simple and Cost-Effective Method for Leukocyte Analysis in Semen
04:36

Author Spotlight: A Simple and Cost-Effective Method for Leukocyte Analysis in Semen

Published on: January 19, 2024

5.8K

Area of Science:

  • Reproductive Medicine
  • Urology
  • Andrology

Background:

  • Ejaculatory dysfunctions are common but under-discussed causes of male infertility.
  • Existing terminology for these conditions is often ambiguous and confusing.
  • A clear understanding of normal ejaculatory function is essential for diagnosing dysfunction.

Discussion:

  • This review clarifies the definitions of common ejaculatory dysfunctions.
  • It emphasizes the importance of precise terminology in diagnosing and managing male infertility.
  • Understanding normal ejaculatory physiology provides a baseline for identifying abnormalities.

Key Insights:

  • Defines and differentiates various ejaculatory dysfunctions impacting male fertility.
  • Highlights the need for standardized terminology in reproductive medicine.
  • Provides a comprehensive overview of evaluation and management strategies.

Outlook:

  • Improved understanding and communication regarding ejaculatory dysfunctions can enhance fertility outcomes.
  • Further research into the specific etiologies and targeted treatments for ejaculatory disorders is warranted.
  • Standardized diagnostic criteria will facilitate more effective patient care and research.