Etiology of urethral stricture

Location		Etiology of stricture
Anterior urethra	Meatus	Instrumentation, iatrogenic, hypospadias, skin disorders (lichen sclerosus)
	Pendulous urethra	Instrumentation, iatrogenic, hypospadias, skin disorders (lichen sclerosus), sexually transmitted infections, crush injury
	Bulbar urethra	Instrumentation, iatrogenic, skin disorders (lichen sclerosus), sexually transmitted infections, crush injury, straddle-type injury
Posterior urethra	Membranous urethra	Instrumentation, pelvic fracture with urethral distraction defects
	Prostatic urethra	Instrumentation, radiation therapy for prostate cancer (external beam radiation therapy, brachytherapy)
	Bladder neck	Instrumentation, radiation therapy for prostate cancer (external beam radiation therapy, brachytherapy)

Graphic 60938 Version 4.0