<unk> s most commonly result from injury, urethral instrumentation, infection, non-infectious inflammatory conditions of the urethra, and after prior hypospadias surgery. Less common causes include congenital<unk> s and those resulting from malignancy.<unk> s after blunt trauma can generally be divided into two sub-types; * Pelvic fracture-associated urethral disruption occurs in as many as 15% of severe pelvic fractures. These injuries are typically managed with suprapubic tube placement and delayed urethroplasty 3 months later. Early endoscopic realignment may be used in select cases instead of a suprapubic tube, but these patients should be monitored closely as vast majority of them will require urethroplasty. * Blunt trauma to the perineum compresses the bulbar urethra against the pubic symphysis, causing a "crush" injury. These patients are typically treated with suprapubic tube and delayed urethroplasty. Other specific causes of<unk>  include: * Instrumentation (e.g., after transurethral resection of prostate, transurethral resection of bladder tumor, or endoscopic kidney surgery) * Infection (typically with Gonorrhea) * Lichen sclerosus * Surgery to address hypospadias can result in a delayed<unk> , even decades after the original surgery.
Urethral stricture
Urethral diverticulum
Urethral foreign body
Bulbar urethral necrosis
Ureteric stricture
Bladder outlet obstruction
Ureterovaginal fistula
Urethral syndrome