All articles starting with U

Urethral stricture

Urethral stricture: fibrotic narrowing of the urethra (spongiofibrosis) causing obstructive urination. Causes include iatrogenic injury, trauma, and infection; treated by dilation, DVIU, or urethroplasty with buccal mucosa grafts, guided by AUA and EAU guidelines.

Urethritis

Urethritis, also called urethral syndrome or nongonococcal urethritis (NGU), is inflammation of the urethra, mainly caused by N. gonorrhoeae, C. trachomatis, and M. genitalium; treated with doxycycline 100 mg twice daily for 7 days.

Urethritis and urethral syndrome

Urethritis and urethral syndrome are related conditions of the urethra, the tube carrying urine from the bladder. Urethritis is inflammation, infectious or noninfectious; urethral syndrome is noninfectious irritation.

Urethrography

Urethrography is the radiographic imaging of the urethra with iodinated contrast, performed retrograde or during voiding, and remains the gold standard for diagnosing and staging urethral strictures and injuries.

Urethropexy

Urethropexy is a surgical operation that suspends and fixes the urethra or bladder neck to treat stress urinary incontinence in women, chiefly through the Burch colposuspension, often when mesh slings are unsuitable.

Urethroplasty

Urethroplasty is the surgical reconstruction of the urethra, done mainly to treat urethral stricture disease by excising the narrowed segment or augmenting it with tissue.

Urethrostomy

Urethrostomy is a surgical procedure creating a permanent opening between the urethra and the skin, usually in the perineum, used mainly for complex or recurrent urethral stricture disease.

Urethrotomy

Urethrotomy, also called internal urethrotomy, is an endoscopic surgical procedure that cuts open a urethral stricture, a scar-induced narrowing of the urethra, to restore urine flow.

Urethrovaginal fistula

Urethrovaginal fistula (UVF), an abnormal passage between the female urethra and vagina (ICD-11 GC04.14), usually iatrogenic from incontinence or diverticulum surgery; causes post-void vaginal urine leakage and is repaired vaginally, with SUI in about half after closure.

Uretsete Mons

Uretsete Mons, a 500-km-diameter shield volcano on Venus at 12°S, 261°E near Phoebe Regio; IAU-named 1997 for a Keresan Pueblo ancestor goddess; 2.3 km high, domical, with postdating fractures and embaying flows.

Sep 24, 2026

Ureuk

Ureuk (우륵, 于勒) was a sixth-century gayageum musician of Daegaya who composed twelve pieces for King Gasil, then defected to Silla, where his music became court music under King Jinheung.

Oct 20, 2026

Urewera

Urewera (Te Urewera), North Island New Zealand forest region, homeland of Tūhoe; former national park (1954, 212,673 ha) granted legal personhood by the Te Urewera Act 2014, governed by the Te Urewera Board.

Urewera National Park

Urewera National Park (Te Urewera National Park) was a North Island New Zealand national park established in 1954 around Lake Waikaremoana, enlarged to 212,673 ha, and disestablished in 2014 when the Te Urewera Act granted the area legal personhood under a Tūhoe and Crown board.

Urfa

Urfa, officially Şanlıurfa, ancient Edessa (Urhai, Ruha), a city in southeastern Turkey; former capital of the Osrhoene kingdom under the Abgar dynasty, early Christian center, Crusader county seat, and home province of Göbekli Tepe.

Urfi Javed

Urfi (Uorfi) Javed, Indian actress and fashion influencer known for DIY outfits from unconventional materials; Bigg Boss OTT contestant, star of Follow Kar Lo Yaar, winner of The Traitors, and subject of obscenity complaints and legal cases.

Sep 23, 2026

Urfi Shirazi

Urfi Shirazi (عرفی شیرازی) was a Persian poet who moved to India and became one of the most influential poets at Akbar's Mughal court, dying in Lahore in 1591.

URG-I

URG-I (Upper Receiver Group - Improved) is an upgraded upper receiver assembly for the M4A1 carbine, adopted by USASOC in 2017 and fielded to Special Forces and Rangers from 2018.

Oct 3, 2026

Urga

Urga (Close to Eden) is a 1991 France–Soviet drama directed by Nikita Mikhalkov about a Mongolian herder and a Russian trucker; it won the Venice Golden Lion and an Oscar nomination.

Urge Overkill

Urge Overkill, Chicago alternative rock band formed mid-1980s by Nash Kato and Eddie "King" Roeser, named after a Parliament song; known for Saturation (1993) and the Pulp Fiction Neil Diamond cover "Girl, You'll Be a Woman Soon."

Urgency of urination

Urgency of urination (ICD-11 MF50.63) is the sudden, compelling need to pass urine that is difficult to defer; the hallmark symptom of overactive bladder, also caused by UTIs, BPH, and bladder pain syndromes.

Urgut Tumani

Urgut Tumani (Urgut district), Samarkand Region, Uzbekistan; center Urgut town, 35 km from Samarkand; established 1964; 582,613 people (2025); medieval Church of the East monastery site and Urgut free economic zone.