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The urinary bladder is a hollow, muscular sac that temporarily stores urine before it is expelled from the body. It can hold approximately 600 mL of urine prior to micturition. The bladder is retroperitoneal and located behind the pubic symphysis in the pelvic floor.
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The lower urinary system consists of the urinary bladder and urethra, which are essential in storing and expelling urine from the body. Together with the internal and external sphincters, these structures work together to regulate urination effectively.Anatomy of the BladderThe urinary bladder is a muscular, stretchable organ behind the pubic bone and in front of the rectum. In females, the bladder is positioned anterior to the vagina and inferior to the uterus, while in males, it is located...
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Urodynamic Studies: Uroflowmetry01:19

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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...
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Urination, or micturition involves the coordination of the bladder's detrusor muscle and two sphincters to ensure controlled bladder emptying.
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Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
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Disorders of the Male Reproductive System01:20

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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.
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Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
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Bladder function in obstructed men - does age matter?

Fabricio Beltrame, Fabrizzio Beltrame1, Fabio Thadeu Ferreira2

  • 1a Division of Geriatric Urology , Federal University of São Paulo , Brazil .

The Aging Male : the Official Journal of the International Society for the Study of the Aging Male
|May 23, 2015
PubMed
Summary

Aging significantly impacts bladder function, decreasing voided volume and bladder capacity. These age-related changes in voiding and storage functions suggest intrinsic causes beyond detrusor contractility or outflow obstruction.

Keywords:
Agingprostateurinary bladder neck obstructionurodynamic

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Area of Science:

  • Gerontology
  • Urology
  • Physiology

Background:

  • The aging population presents increasing challenges for healthcare systems globally.
  • Understanding age-related physiological changes is crucial for managing health conditions in older adults.

Purpose of the Study:

  • To investigate the effects of aging on lower urinary tract symptoms (LUTS) and urodynamic parameters in men.
  • To identify specific age-related changes in bladder function.

Main Methods:

  • A retrospective review of 971 men aged 40+ evaluated for LUTS.
  • Urodynamic investigations included uroflowmetry, filling cystometry, and pressure flow study (PFS).

Main Results:

  • Aging correlated with decreased voided volume, maximum flow rate (Qmax), bladder capacity, and bladder compliance.
  • Pressure flow studies showed reduced voiding efficiency, voided volume, and average flow rate (Qave) with age.
  • Subgroup analyses confirmed significant age-related differences in voiding efficiency, voided volume, and Qave.

Conclusions:

  • Age-related changes in voiding function may stem from intrinsic causes, not solely impaired detrusor contractility or outflow obstruction.
  • Alterations in bladder storage function are specific pathophysiological mechanisms influenced by aging.