Related Experiment Video
Updated: Jun 21, 2026
03:28
Sperm Collection of Differential Quality Using Density Gradient Centrifugation
Published on: November 29, 2018
[Corelation between hyperviscosity of the ejaculate and physical-morphological and biochemical parameters]
L Bobák1, J Rosocha, L Lehocká
1Zdruieni tkanivová banka, Lekárska fakulta Univerzity P. J. Safárika a FN L. Pasteura, Kosice.
Ceska Gynekologie
|August 1, 2009
Summary
High semen viscosity is linked to reduced sperm motility and increased abnormalities, potentially indicating urogenital infections. This parameter is crucial for male fertility assessment.
Area of Science:
- Andrology
- Reproductive Medicine
- Urology
Context:
- Semen hyper-viscosity is a complex parameter in male fertility.
- Understanding its relationship with semen quality and infection is vital.
- Previous studies have explored various semen parameters, but the link between hyper-viscosity and specific biochemical and morphological factors, especially in the context of infection, requires further elucidation.
Purpose:
- To investigate the correlation between seminal hyper-viscosity and physical-morphological, biochemical ejaculate parameters.
- To explore the potential influence of local urogenital infections on semen viscosity and associated parameters.
- To assess the diagnostic value of hyper-viscosity in male fertility evaluations.
Summary:
- A retrospective analysis of 100 men with increased semen viscosity revealed significant correlations between hyper-viscosity, reduced sperm motility, and increased morphological abnormalities.
- Asthenozoospermia cases showed links between polymorphonuclear granulocytes (PMN), higher seminal fluid pH, decreased sperm vitality, reduced seminal plasma fructose, and positive microbiology.
- High visco-elasticity positively correlated with positive microbiology, even with low rates of leukocytospermia, suggesting latent infections.
Impact:
- Hyper-viscosity is a simple yet significant parameter for male fertility assessment, associated with asthenoteratozoospermia.
- Lowering leukocytospermia cutoff criteria may aid in detecting chronic or latent urogenital infections.
- The combination of viscopathy and asthenoteratozoospermia may serve as indicators for microbiological examination.
Related Concept Videos
01:22Sperm 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...
01:17Male 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...
The blood filling the erectile tissues compresses the veins, which helps to prevent blood from leaving...
01:17Viscosity
When water is poured into a glass, it falls freely and quickly, whereas if honey or maple syrup is poured over a pancake, it flows slowly and sticks to the surface of the container. This difference in the flow of different kinds of liquids arises due to the fluid friction between the liquid layers and the liquid and the surrounding material. This property of fluids is called fluid viscosity. In this example, water has a lower viscosity than honey and maple syrup.
The SI unit of viscosity is...
The SI unit of viscosity is...
01:27Viscosity
Viscosity is a property of fluids that measures their resistance to flow. It is influenced by factors such as the surface area of contact, the gradient of flow speed, and the fluid's viscosity constant, called the coefficient of viscosity. The coefficient of viscosity, also known as dynamic viscosity, is denoted by the symbol η. It determines the proportionality between the viscous force and the gradient of flow speed.Newton's law of viscosity states that the viscous force on a faster-moving...
01:19Viscosity of Fluid
Viscosity measures the resistance a fluid offers to flow and deformation. It results from internal friction between layers of fluid moving relative to one another. Dynamic viscosity, denoted by the Greek letter mu (μ), quantifies the force needed to move one fluid layer over another. For Newtonian fluids like water and air, the relationship between the shearing stress and the rate of shearing strain is linear, meaning their viscosity remains constant regardless of the applied stress.
01:19Urodynamic Studies: Uroflowmetry
Uroflowmetry is a non-invasive urodynamic test designed to measure various aspects of urination, including volume, flow rate, and the time to void. This test is crucial for diagnosing and assessing conditions such as bladder outlet obstruction, bladder dysfunction, incomplete bladder emptying, incontinence, and urinary tract blockages caused by benign prostatic hyperplasia (BPH) and urethral strictures.Pre-Test Instructions:Before a uroflowmetry test, patients are typically advised to drink...