AI-assisted educational draft published for Dr. Srikanth Munna, MBBS, DNB, MCh (Urology), consultant urologist and andrologist in Hyderabad. This page is general information. It is not a diagnosis or a personal treatment plan.
A urethral stricture is scar tissue that narrows the urine tube. Men notice a weak stream, spraying, straining, or infections that keep returning. The symptoms overlap with an enlarged prostate, but the problem is in the urethra, not the prostate gland. Diagnosis uses a flow test, an ultrasound of the bladder, and an X-ray or camera test to show where the scar is and how long it is.
- Definition. Scar narrowing of the urethra.
- Common clues. Slow stream, spraying, dribbling, and incomplete emptying.
- Typical causes. Injury, infection, prior instrumentation, skin disease, or unknown.
- Why mapping matters. Treatment depends on the site and length of the scar.
What causes the scar?
The urethra can scar after a straddle injury, a pelvic fracture, sexually transmitted infection, or repeated inflammation. Catheters, telescopes, and previous urethral surgery are other causes. Lichen sclerosus, a skin condition, can narrow the opening and the anterior urethra. In many men no single cause is found.
The scar does not stretch reliably on its own. Over time the bladder may retain urine, stones may form, and the kidneys can be affected if emptying stays poor. That sequence is why a weak stream that is getting worse should be measured, not only described.
How is this different from a prostate problem?
Both can cause a slow stream and night-time urination. Stricture is more suggested by spraying, a stream that has been poor since a younger age, a history of urethral injury or infection, and a bladder that does not empty in a man whose prostate is not large.
Prostate medicines will not open a scar in the urethra. Treating the wrong condition delays the correct procedure. An examination and a flow test start to separate them.
Which tests map the stricture?
Uroflowmetry records the speed of the stream. Ultrasound measures urine left behind. A retrograde urethrogram uses contrast to outline the urethra on X-ray. Cystoscopy shows the face of the stricture with a camera but may not show the full length if the scope cannot pass.
These tests are planned together. Knowing whether the scar is at the tip, along the penile urethra, or in the bulbar urethra changes the operation that is sensible. A short bulbar stricture and a long penile stricture are not treated the same way.
What are the treatment categories?
Options include dilation, an internal cut with a telescope, and open reconstruction that removes or rebuilds the scarred segment, sometimes with a graft. Endoscopic cuts are simpler and have a higher chance of the scar returning, especially if repeated. Urethroplasty is a larger operation with a different recovery and, in appropriate cases, a more durable opening.
The decision uses site, length, cause, previous procedures, and the person's priorities. Any description of a 'permanent cure' overstates what surgery can promise. Follow-up flow tests are part of care because recurrence can be silent at first.
Questions people ask
Can a stricture close the urethra completely?
It can narrow enough that only drops pass, and complete retention can occur. That needs urgent catheter or diversion care, then a planned reconstruction.
Is a telescope cut a cure?
It can open the channel for a time. Many strictures recur after dilation or optical urethrotomy, particularly if the treatment is repeated.
Will I always need a catheter afterwards?
Some procedures use a catheter for a defined period. The duration depends on the operation. It is not always lifelong.
Can infections keep coming from a stricture?
Yes. Poor emptying lets bacteria persist. Treating only the infection leaves the obstruction in place.
Related service page: Urethral stricture treatment.
Educational information only. Treatment decisions need an individual clinical assessment. Outcomes vary. This article does not claim results, rankings, or a guaranteed method of care.