Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Spermatogenesis

Spermatogenesis

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 reproductive...

Infertility in Males

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...

Sperm Structure and Semen Composition

Sperm Structure and Semen Composition

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...

Statistical Methods for Analyzing Epidemiological Data

Statistical Methods for Analyzing Epidemiological Data

Epidemiological data primarily involves information on specific populations' occurrence, distribution, and determinants of health and diseases. This data is crucial for understanding disease patterns and impacts, aiding public health decision-making and disease prevention strategies. The analysis of epidemiological data employs various statistical methods to interpret health-related data effectively. Here are some commonly used methods:

Observational Studies

Observational Studies

Observational studies are a type of analytical study where researchers observe events without any interventions. In other words, the researcher does not influence the response variable or the experiment's outcome.
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One example of...

You might also read

Related Articles

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

Sort by

Same journal

Prevalence of Electrocardiographic Changes and Risk Factors for QTc Prolongation Among Steady State Sickle Cell Disease Patients: Cooperative Study of Sickle Cell Disease.

Oman medical journal·2026

Same journal

Beyond Mechanical Failure: Esophagitis Causing Post Myotomy Obstruction in Congenital Achalasia.

Oman medical journal·2026

Same journal

A Rare Optic Disc Anomaly with Unique Fundoscopic and MRI Findings.

Oman medical journal·2026

Same journal

Prevalence of Hypernatremia Among Medically Hospitalized Patients and the Related Clinical Outcomes.

Oman medical journal·2026

Same journal

Cetuximab-induced Facial Hypertrichosis in a Woman Treated for Metastatic Colon Adenocarcinoma.

Oman medical journal·2026

Same journal

Retinal Dystrophy and Leukodystrophy Caused by ACBD5 Deficiency in Five Omani Patients: A Case Series.

Oman medical journal·2026

Search research articles

Related Experiment Video

Updated: May 14, 2026

Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System

Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System

Published on: May 24, 2017

Does cigarette smoking affect seminal fluid parameters? A comparative study.

Zakarya Bani Meri, Ibrahim Bani Irshid, Mohammad Migdadi

Oman Medical Journal

|February 7, 2013

Summary

Cigarette smoking negatively impacts male fertility by reducing sperm motility and increasing abnormal sperm morphology. Heavy smokers showed lower sperm concentration and more abnormalities, suggesting a dose-dependent effect.

Keywords:

Cigarette smoking Sperm Count Sperm morphology Sperm motility

More Related Videos

Studying Effects of Cigarette Smoke on Pseudomonas Infection in Lung Epithelial Cells

Studying Effects of Cigarette Smoke on Pseudomonas Infection in Lung Epithelial Cells

Published on: May 11, 2020

Cigarette Smoke Exposure in Mice using a Whole-Body Inhalation System

Cigarette Smoke Exposure in Mice using a Whole-Body Inhalation System

Published on: October 22, 2020

Related Experiment Videos

Last Updated: May 14, 2026

Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System

Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System

Published on: May 24, 2017

Studying Effects of Cigarette Smoke on Pseudomonas Infection in Lung Epithelial Cells

Studying Effects of Cigarette Smoke on Pseudomonas Infection in Lung Epithelial Cells

Published on: May 11, 2020

Cigarette Smoke Exposure in Mice using a Whole-Body Inhalation System

Cigarette Smoke Exposure in Mice using a Whole-Body Inhalation System

Published on: October 22, 2020

Area of Science:

Reproductive Medicine
Andrology
Environmental Health

Background:

Male infertility affects a significant portion of couples seeking reproductive assistance.
Lifestyle factors, including cigarette smoking, are increasingly recognized as contributors to male subfertility.
Understanding the specific impact of smoking on semen quality is crucial for clinical guidance.

Purpose of the Study:

To investigate the detrimental effects of cigarette smoking on key seminal fluid parameters in men presenting with infertility.
To assess the influence of smoking on sperm volume, concentration, motility, morphology, and leukocyte infiltration.
To differentiate the impact of smoking intensity on these parameters.

Main Methods:

A cohort of 960 infertile males was analyzed, categorized into non-smokers (n=564) and smokers (n=396).
Seminal fluid analysis included assessment of volume, sperm concentration, motility, and morphology after 3-5 days of abstinence.
Smokers were further divided into heavy (n=266) and non-heavy (n=130) subgroups to evaluate dose-response effects.

Main Results:

Smoking significantly impaired sperm motility and increased the rate of sperm morphological abnormalities (p<0.005).
Sperm concentration was not significantly affected by smoking.
Heavy smokers exhibited lower sperm concentrations and a higher percentage of abnormal sperm forms compared to non-heavy smokers.

Conclusions:

Cigarette smoking adversely affects crucial seminal fluid parameters, including sperm motility and morphology.
These smoking-induced changes in semen quality may contribute to male subfertility.
The findings highlight the importance of smoking cessation for improving male reproductive health.