Urethral Stricture Treatment: Dilation, Urethrotomy & Urethroplasty — Procedure Guide, Recovery & Risks | MyMedicPlus

Urethral stricture treatment encompasses a range of endoscopic and reconstructive surgical procedures to widen or surgically reconstruct the male urethra that has been pathologically narrowed by scar tissue (fibrosis of the spongiosum — termed spongiofibrosis), obstructing the normal passage of urine. The urethra can become strictured as a consequence of infection (historically gonorrhoea, now predominantly non-gonococcal urethritis), iatrogenic trauma from catheterisation, urethral instrumentation or transurethral resection, pelvic fracture urethral injury (PFUI) causing posterior urethral disruption, lichen sclerosus (balanitis xerotica obliterans) causing progressive obliterative penile urethral disease, idiopathic fibrosis, and rarely radiation. The location, length, and degree of spongiofibrosis determines the most appropriate treatment approach. Short bulbar strictures (under 1-1.5 cm) in the bulbous urethra are most amenable to endoscopic treatment. Longer strictures, dense fibrosis, previous failed endoscopic procedures, or penile urethral strictures due to lichen sclerosus require open surgical reconstruction — urethroplasty — using grafts (buccal mucosa from the inner cheek, skin) or flaps to bridge the strictured segment, which offers significantly better long-term outcomes despite greater surgical complexity. The EAU and AUA guidelines recommend urethroplasty over repeated DVIU for strictures longer than 2 cm or any stricture that has recurred after a prior endoscopic treatment, as urethroplasty provides superior long-term outcomes.

Men with a confirmed urethral stricture causing symptomatic obstructive lower urinary tract symptoms are candidates for treatment, with the specific modality selected based on stricture characteristics and patient factors. Symptoms of urethral stricture include reduced urine stream force and flow rate (Qmax below 15 mL/s with normal bladder contractility), spraying, bifurcation, or intermittency of stream, straining to void, incomplete bladder emptying with increased post-void residual, and in severe cases complete urinary retention. Diagnostic confirmation is made by flexible cystoscopy, retrograde urethrogram (RUG) or antegrade cystourethrogram, and uroflowmetry. Asymptomatic strictures discovered incidentally and causing no functional obstruction (Qmax above 15 mL/s, no post-void residual, no upper tract changes) may be monitored with periodic uroflowmetry and imaging. Patients with acute urinary retention due to a stricture require emergency urethral catheterisation or, if this fails, suprapubic cystostomy. Men with recurrent urinary tract infections, bladder stones, or upper tract dilatation caused by their stricture have a compelling indication for treatment to prevent progressive renal damage.

Direct Vision Internal Urethrotomy (DVIU): Under spinal or general anaesthesia, a rigid urethrotome (a narrow-calibre cystoscope with a cold-knife blade in the working channel) is introduced and the stricture is identified under direct vision. The scar tissue is incised at the 12 oclock position — or in the lateral position for bulbar strictures — from healthy mucosa to healthy mucosa. The incision releases the circumferential scar, immediately widening the urethral lumen. A urethral catheter (14-16 Fr) is left in situ for 24-48 hours. Success for short bulbar strictures (under 1.5 cm) with the first DVIU is 60-70%; recurrence rates exceed 50% for longer or previously treated strictures — DVIU is therefore not recommended for strictures over 2 cm or as a repeated procedure. Urethroplasty: the gold standard for longer or recurrent strictures. Anastomotic urethroplasty is used for short bulbar strictures with dense fibrosis: the strictured segment is excised and the two healthy urethral ends re-anastomosed over a catheter in a spatulated tension-free fashion, achieving cure rates of 90-95% at 5 years. For longer bulbar strictures requiring substitution, buccal mucosa graft (BMG) — harvested from the inner cheek as a 1.5-2 cm wide, 3-8 cm long strip under local anaesthesia — is the preferred graft material, placed as a dorsal onlay, ventral onlay, or augmented anastomosis depending on the degree of spongiofibrosis and surgeon preference. Penile urethral strictures due to lichen sclerosus require staged reconstruction with buccal mucosa grafts, as skin substitutes inevitably fail due to recurrent lichen sclerosus involvement.

DVIU provides immediate symptomatic relief with rapid return to normal voiding for the majority of patients with short, single, previously untreated bulbar strictures of under 1.5 cm, with a success rate of 60-70% at one year for this selected population. The procedure is minimally invasive, requires only a brief 24-48 hour catheter, and enables return to normal activities within days. Anastomotic urethroplasty for excisable bulbar strictures achieves long-term success rates of 90-95% at 5 years and 85-90% at 10 years, representing the highest cure rates of any urethral stricture intervention. Buccal mucosa graft urethroplasty achieves success rates of 85-90% at 5 years for longer strictures, significantly outperforming repeated DVIU or intermittent self-dilation in the same population. Successful treatment restores normal urinary flow, eliminates post-void residual, prevents recurrent urinary tract infections, resolves epididymo-orchitis, and protects the upper urinary tract from progressive obstruction-related damage.

DVIU carries a high stricture recurrence rate — exceeding 50% within one year for strictures longer than 1.5 cm or for any stricture after a previous DVIU — because incising the fibrotic scar without excision or substitution graft leaves the underlying spongiofibrosis in situ, which reforms as new scar over the incised tissue. Repeated DVIU worsens spongiofibrosis and reduces the success of subsequent urethroplasty. Perioperative risks of DVIU include urinary tract infection, haematuria, and rare false passage (inadvertent perforation of the urethral wall). Urethroplasty carries risks of wound haematoma (3-5%), wound infection, anastomotic breakdown with fistula formation (under 2%), urinary fistula (under 1%), post-operative erectile dysfunction (transient in 5-10% following bulbar anastomotic urethroplasty, rarely permanent), and penile shortening (mild, with anastomotic procedures). Buccal mucosa graft harvest complications include transient inner cheek numbness, tightness or limitation of mouth opening (rare, resolves within weeks), and saliva consistency changes. Graft failure — occurring in 10-15% — usually presents as recurrent stricture within 12-24 months of surgery and may require a staged revision procedure.

After DVIU, the urethral catheter is removed in clinic after 24-48 hours (occasionally up to 5 days for longer or complex strictures), and patients resume normal voiding. Most men return to light work within 2-3 days and normal activities within one week. A uroflowmetry is performed at 3 months to confirm adequate flow rates (Qmax above 15 mL/s) and to assess for early recurrence. Some urologists advocate a course of intermittent self-dilation — passing a soft catheter weekly for 6-12 months after DVIU — to reduce recurrence risk, though evidence for this is modest. After urethroplasty, the urethral catheter remains for 2-3 weeks to allow complete mucosal healing before removal; a cystourethrogram is performed immediately before catheter removal to confirm watertight anastomosis and graft integration. Post-operative pain is managed with regular paracetamol and anti-inflammatory analgesics; scrotal swelling and perineal bruising are expected and resolve over 2-3 weeks. Heavy lifting and strenuous physical exertion are avoided for 4-6 weeks. Sexual intercourse is deferred for 6-8 weeks after urethroplasty. Long-term follow-up with annual uroflowmetry for 5 years is recommended to detect late recurrence, which occurs most commonly in the first 2 years post-operatively.