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Relating to the urethra.


See urethra.


(u-re'thra) [Gr. ourethra]
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The tube for the discharge of urine extending from the bladder to the outside. In females, its orifice lies in the vestibule between the vagina and clitoris; in males, the urethra passes through the prostate gland and the penis, opening at the tip of the glans penis. In males, it serves as the passage for semen as well as urine. Its lining, the mucosa, is thrown into folds and contains the openings of the urethral glands. Surrounding the mucosa is a lamina propria containing many elastic fibers and blood vessels, outside of which is an indefinite muscular layer. See: penis; illustration

urethra muliebris

The female urethra.

urethra virilis

The male urethra.
urethral (u-re'thral), adjective


Pertaining to the URETHRA.


pertaining to or emanating from urethra.

urethral agenesis, urethral atresia
failure of development of all or part of the urethra: characterized by complete urine retention. A rare cause of neonatal uremia.
urethral calculus
causes a syndrome of acute urethral obstruction (below).
urethral diverticulum
see urachal diverticulum.
urethral fistula
due to trauma; occurs in bulls in which the urethra lies superficially near its end. A fistula may affect the discharge of semen from the normal meatus sufficiently to cause infertility.
urethral groove
a median groove along the ventral surface of the genital tubercle providing an eventual location for the penile urethra in the male.
urethral hydropulsion
urethral hypoplasia
a cause of urinary incontinence in female dogs and rarely cats.
urethral muscle
striated muscle in the wall of the male pelvic urethra.
urethral obstruction
causes acute abdominal pain with grunting and straining to urinate, tail switching, distention of the bladder, dripping of blood-stained urine, protrusion of the penis. Eventually the bladder ruptures or the urethra perforates. Caused usually by calculus. See also urolithiasis.
urethral perforation
occurs usually at the site of urethral obstruction by a calculus. Causes urinary infiltration of the ventral abdominal wall and terminal uremia. Called also waterbelly. Rarely the accumulation occurs retroperitoneally and is palpable rectally. See also hypospadias.
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Subcutaneous swelling containing urine due to urolithiasis and urethral perforation. By permission from Blowey RW, Weaver AD, Diseases and Disorders of Cattle, Mosby, 1997
urethral plate
a solid cord of endodermal cells which arise from the floor of the urogenital sinus, contributing to the formation of the urethral groove.
urethral plug
occurs in male cats causing urethral obstruction; associated with feline urological syndrome. The plug is composed of proteinaceous material with cellular debris and struvite crystals.
urethral pressure profile
a study of the intraurethral pressure as a means of identifying the cause of urinary incontinence in dogs and cats.
urethral pressure profilometry
a measure of intraurethral pressures; used in the investigation of urinary incompetence in dogs and cats. Usually carried out with a pressure-measuring device in the tip of a catheter placed in the urethra and bladder.
urethral process
the extension of the urethra beyond the end of the glans penis. In the horse it is mostly concealed in the urethral fossa. In small ruminants it is in the form of a 1 to 2 inch long filiform appendage and is easily injured during shearing, interfering with the animal's subsequent fertility.
urethral prolapse
protrusion of urethral mucosa at the end of the penis.
urethral prosthesis
a synthetic conduit used in the treatment of urethral stricture or obstruction in cats, particularly following an unsuccessful urethrostomy.
proximal urethral ulceration
causes hematuria at the end of urination in horses.
urethral rupture
see urethral perforation (above).
urethral sling
urethral sphincter mechanism incompetence
a cause of urinary incontinence in female dogs and occasionally cats.
urethral stricture
caused by trauma, particularly injury associated with urethral calculi or urethral surgery. Clinically similar to obstruction except that the condition is subacute or chronic and characterized by a persistently distended bladder, dribbling of urine and the passage of a thin stream, usually accompanied by straining.
References in periodicals archive ?
Vulva and urethras were not damaged or bleeding during the urethral catheterization, and we could implement urine testing, urine flow dynamic monitoring, and dynamic observation of the urine weight, proportion, or color at any time according to our needs.
Potential adverse events associated with urethral bulking agents include transient urinary retention, hematuria, de novo urgency incontinence, bulking agent extrusion, immune reaction, and rare granuloma formation.
A clinical history of the patient revealed that he had undergone TUR-P for benign prostatic hyperplasia one year prior to admission and internal urethrotomy for a urethral stricture three months before.
PUC is a urethral lesion that can occur in children and young adults and there is limited number of case reports in the literature about this condition.
Patient was diagnosed as a case of urethral injury and surgery was planned.
Conclusion: In our study the excellent results of the penile skin flap both in anterior urethral strictures and combined anterior and bulbar urethral strictures are quite encouraging.
Based upon the Abrams-Griffiths nomogram, Abrams and Griffiths [5] and Lim and Abrams [6] introduced the Abrams-Griffiths (AG) number for quantifying the urethral resistance.
Key Words: Sonourethrography (SUG), Retrograde urethrography (RUG), Urethral stricture, Spongiofibrosis.
Five patients suffered from mild tingling or burning sensation upon dressing at the urethral orifice, and most cases felt similarly after being illuminated for five minutes, suggesting that they tolerated the combined therapy well.
KEY WORDS: Urethra; Stricture; Urethral Stricture; Urethrotomy; Optical Internal Urethrotomy; Clean Intermittent Self Catheterization.
Following the determination of OMI, individual slide of different segments was examined under microscope at 10 objectives, and measured the diameter of urethral lumen.
Urethral hydropulsion followed by cystotomy can be adopted to remove large cystic calculi and small urethral calculi (Blount, 1931).