Urethral strictures can make passing urine progressively more difficult and, if left untreated, may lead to infections and long-term strain on the bladder and kidneys. A stricture is a physical narrowing of the urethra caused by scar tissue, so it does not usually resolve on its own. Treatment focuses on accurately defining the narrowing and choosing the option most likely to restore urine flow and reduce the risk of recurrence.

Understanding a urethral stricture

A urethral stricture is a narrowing within the urethra caused by fibrosis (scar tissue) after injury or inflammation. The scar tissue reduces the internal diameter of the urethra, which can slow urine flow, cause spraying or splitting of the stream, and in more advanced cases lead to dribbling or inability to pass urine.

Strictures are more common in men because the urethra is longer and surrounded by spongy tissue that can be affected by trauma or surgical procedures. In women, strictures are less common but can still occur.

Common causes and risk factors

A stricture can develop after anything that injures the urethral lining and triggers scarring. Common causes include:

• Previous urological procedures or surgery involving the urethra or prostate
• A history of urinary catheterisation (especially repeated or difficult catheter placement)
• Inflammation or infection of the urethra, including sexually transmitted infections
• Trauma to the perineum (the area between the genitals and anus), for example from cycling injuries, falls, or pelvic trauma
• Passing a stone that irritates or injures the urethra

In some people, no clear cause is identified, but the treatment approach still depends on the location, length, and severity of the narrowing.

Symptoms you may notice

Symptoms can develop gradually and may be mistaken for other urinary conditions. Typical symptoms include:

• Weak urine stream or reduced flow rate
• Thin stream, spraying, or a forked stream
• Difficulty starting urination or straining to pass urine
• Dribbling after urination
• A feeling of incomplete emptying
• Urinary frequency or urgency

If a stricture is causing complications, symptoms may also include:

• Burning or pain when passing urine
• Recurrent urinary tract infections
• Lower abdominal discomfort
• Blood in the urine (occasionally)

A complete blockage is a medical emergency. If you cannot pass urine at all, urgent assessment is needed.

Why assessment matters before treatment

Choosing the right treatment depends on understanding the stricture in detail. The most important factors are:

• The exact location of the narrowing
• The length of the stricture segment
• Whether it is partial or complete
• Whether there have been previous treatments and whether they have failed
• The impact on bladder emptying and the risk to the kidneys

At our clinic, assessment is planned to confirm the diagnosis, rule out other causes of urinary symptoms, and select a treatment strategy that balances effectiveness with recovery time and recurrence risk.

How a urethral stricture is diagnosed

Diagnosis usually involves a combination of history, examination, and targeted tests.

Medical history and symptom review

A careful history often provides key clues, including prior procedures, catheter use, infections, trauma, and how symptoms have progressed.

Urine flow testing (uroflowmetry)

A uroflow test measures the speed and pattern of urine flow. A reduced peak flow can support the suspicion of a stricture, especially when symptoms are typical.

Imaging to map the narrowing

A contrast X-ray study may be arranged to define the stricture’s location and length. This mapping is important for deciding whether an endoscopic approach is likely to succeed or whether reconstructive surgery is more appropriate.

Cystoscopy

Cystoscopy uses a small camera to look inside the urethra and bladder. It can help confirm the diagnosis and, in some cases, may be used as part of treatment planning.

Treatment options and how they differ

Because a stricture is a physical narrowing caused by scar tissue, medication alone is not a definitive treatment. The best option depends on the stricture’s characteristics and your previous treatment history.

Immediate relief when urine cannot pass

If there is complete obstruction or severe retention, urine may need to be drained urgently. In some cases, a suprapubic catheter (a catheter placed into the bladder through the lower abdomen) is used to bypass the urethra temporarily. This stabilises the situation and allows time for proper evaluation and definitive treatment planning.

Endoscopic treatments (minimally invasive, through the urethra)

Endoscopic options may be considered for short, uncomplicated strictures. These procedures are performed internally via the urethra and typically have a shorter initial recovery.

Common endoscopic approaches include:

• Dilation (stretching) using graded instruments or a balloon
• Internal urethrotomy, where the narrowed area is opened with a small blade or laser

Limitations to understand:

• Recurrence is common, especially as stricture length increases
• Success rates tend to be lower for longer strictures or those that have returned after prior treatment
• Repeated endoscopic procedures can become less effective over time and may impact quality of life

For people who experience repeated relapse after endoscopic treatment, reconstructive surgery is often the more durable solution.

Urethroplasty (reconstructive urethral surgery)

Urethroplasty is an open surgical repair aimed at restoring the urethra more definitively. It is typically recommended when:

• The stricture is longer
• The narrowing is dense or complex
• There has been recurrence after endoscopic treatment
• The stricture significantly affects bladder emptying or causes complications

The exact technique depends on the stricture’s location and length. Some repairs involve removing the scarred segment and reconnecting healthy ends, while others may use tissue grafting to widen the narrowed area. Your surgeon will explain the most appropriate approach for your anatomy and stricture pattern.

Adjunctive therapies in selected cases

In some settings, additional treatments may be discussed alongside endoscopic procedures to support tissue healing. These options are not suitable for everyone and may not be routinely offered. If relevant, eligibility, evidence, and expected benefits and uncertainties should be discussed clearly during your consultation.

What recovery and follow-up typically involve

Recovery varies depending on whether treatment is endoscopic or reconstructive.

After endoscopic treatment

• A urinary catheter is often left in place for a short period
• Mild burning, frequency, or small amounts of blood in the urine can occur initially
• Follow-up usually includes symptom review and repeat urine flow testing

After urethroplasty

• A catheter is typically required for longer to protect the repair while it heals
• Activity restrictions are common for a period, particularly avoiding heavy lifting and strenuous exercise
• Follow-up may include imaging or cystoscopy in selected cases, along with uroflowmetry and symptom checks

Across all treatment types, monitoring is important because strictures can recur. Early detection often allows simpler management.

Risks, limitations, and important considerations

All procedures carry potential risks, which vary by technique and individual factors. Your doctor will explain what applies to you, but key considerations include:

• Recurrence of the stricture, particularly after dilation or internal urethrotomy
• Bleeding or infection
• Pain or discomfort during recovery
• Temporary urinary urgency, frequency, or burning
• Urinary retention requiring catheterisation
• Risks related to anaesthesia

For urethroplasty, there can be additional risks related to wound healing and the complexity of reconstruction. The decision is made by weighing the likelihood of long-term success against the recovery period and surgical risks.

Why timely treatment matters

Untreated strictures can lead to progressive bladder outflow obstruction. Over time this may contribute to:

• Recurrent urinary tract infections
• Bladder stone formation
• Worsening bladder function
• Back-pressure on the kidneys, which can impair kidney function in severe cases

Infections can also spread to nearby structures in men, potentially contributing to inflammation of the prostate or testicles. Prompt assessment is recommended when symptoms suggest obstruction.

Your consultation and continuity of care

Care is coordinated through our specialist urology clinic, with continuity from assessment to treatment planning and follow-up. The consultation typically includes a detailed discussion of symptoms, possible causes, and prior procedures, followed by tailored investigations to confirm the diagnosis and map the stricture.

Once results are available, our medical team will explain the options in clear terms, including expected outcomes, the chance of recurrence, and what recovery is likely to involve. If surgery is recommended, you will be guided through preparation, catheter care if needed, and a structured follow-up plan to monitor healing and urinary flow.

If you have worsening symptoms, repeated infections, or difficulty passing urine, early review is important so that complications can be prevented and the most suitable treatment can be offered.