Can bladder stones cause urinary retention?

Yes, bladder stones can sometimes cause or contribute to urinary retention. A stone may obstruct the bladder outlet or interfere with normal urine flow, making it difficult to empty the bladder completely. However, urinary retention may also be caused by conditions such as an enlarged prostate or urethral stricture, which can also contribute to bladder stone formation.

Urinary retention means that a person is unable to empty the bladder normally. It can be acute, developing suddenly, or chronic, where the bladder repeatedly fails to empty completely.

A bladder stone can contribute to this problem, particularly when it is positioned near the bladder outlet.

How can a bladder stone cause urinary retention?

A bladder stone may:

• Block the bladder outlet.
• Interfere with urine flow.
• Move toward the opening of the bladder during urination.
• Cause irritation and bladder spasms.
• Contribute to incomplete bladder emptying.

In some cases, the obstruction may be intermittent, meaning urine flow is normal at one time and suddenly becomes difficult at another.

Can a bladder stone completely block urine flow?

Yes, in some situations. A stone can become positioned near the bladder outlet or urethral opening and interfere significantly with urine passage.

Complete inability to urinate is a medical concern and requires prompt evaluation.

Can enlarged prostate also cause urinary retention?

Yes. In men, an enlarged prostate can narrow the bladder outlet and make it difficult for urine to pass.

This is particularly important because BPH can both:

1. Cause urinary retention or incomplete bladder emptying.
2. Contribute to the formation of bladder stones.

Therefore, when a man has both bladder stones and urinary retention, the prostate should also be evaluated.

Can urethral stricture cause urinary retention?

Yes. A urethral stricture causes narrowing of the urethra and can restrict urine flow.

Like an enlarged prostate, a urethral stricture can also contribute to incomplete bladder emptying and bladder stone formation.

What are the symptoms of urinary retention?

Symptoms may include:

• Difficulty starting urination.
• Weak or interrupted urine stream.
• Feeling that the bladder has not emptied.
• Frequent urination in small amounts.
• Lower abdominal discomfort.
• Straining to urinate.

Sudden inability to pass urine is an emergency and requires prompt medical attention.

How is the cause of urinary retention diagnosed?

Your urologist may perform:

• Physical examination.
• Urine testing.
• Ultrasound.
• Post-void residual urine measurement.
• Uroflowmetry.
• Cystoscopy in selected cases.
• Other imaging when required.

These tests can help determine whether the retention is caused by a bladder stone, prostate enlargement, urethral narrowing, or another urinary condition.

How is urinary retention caused by a bladder stone treated?

Treatment depends on the underlying cause.

If the bladder stone is responsible for obstruction, the stone may need to be removed.

For many suitable patients, an endoscopic procedure such as cystolitholapaxy can fragment and remove the stone through the urinary passage.

If an enlarged prostate or urethral stricture is also contributing to obstruction, that condition may require separate or simultaneous treatment.

Can Treating the Stone Alone Fix Urinary Retention?

Not always. If the stone is only one part of the problem, removing it may not completely restore normal bladder emptying.

For example, persistent obstruction from an enlarged prostate or urethral stricture may continue after stone removal.

This is why identifying the underlying cause of urinary retention is an important part of treatment.

When Should I See a Urologist?

Seek urological evaluation if you experience:

• Difficulty passing urine.
• Weak or interrupted urine flow.
• Incomplete bladder emptying.
• Recurrent bladder stones.
• Frequent urinary infections.
• Blood in the urine.
• Recurrent urinary retention.

If you suddenly cannot urinate at all, seek emergency medical care promptly.

SCI International Hospital

At SCI International Hospital, New Delhi, Dr. Gautam Banga, Senior Consultant Urologist and Andrologist, evaluates patients with bladder stones, urinary retention, enlarged prostate, urethral stricture, and other causes of urinary obstruction. A detailed assessment can help determine whether the stone, prostate, urethra, or another condition is responsible for difficulty emptying the bladder.