What Is Urethral Bulking?

Urethral bulking is a minimally invasive treatment used to help control stress urinary incontinence (SUI). It involves injecting a material (called a bulking agent) around the urethra—the tube that carries urine from the bladder out of the body—to make it “bulkier” and help it close more effectively. This reduces urine leakage during activities like coughing, sneezing, or laughing.

Who Is It For?

Urethral bulking is most often recommended for:

Women with stress urinary incontinence, especially after childbirth or menopause
Those who want a non-surgical option
Men with mild incontinence after prostate surgery (in some cases)

How Does It Work?

The urethral sphincter (muscle that controls urine flow) may become weak or unable to close properly. Bulking agents are injected into the tissue surrounding the urethra to support the sphincter and reduce leakage.

The Procedure: What to Expect

Usually performed in an outpatient clinic or hospital
Takes about 15–30 minutes
No incisions—done with a thin scope through the urethra
Local anesthesia is typically used
You may be asked to empty your bladder before and after the procedure

After the Procedure

Most people go home the same day
You may feel some temporary burning or discomfort when urinating
Avoid strenuous activity or sexual intercourse for 24–48 hours
Drink plenty of fluids
Symptoms may improve within a few days to weeks

Potential Benefits

Minimally invasive
Quick recovery
No general anesthesia or hospital stay needed
Repeatable if needed

Possible Risks or Side Effects

Urinary tract infection (UTI)
Temporary difficulty emptying the bladder
Mild bleeding or discomfort
Rarely, allergic reaction or migration of the bulking agent
May require repeat injections over time

How Long Do Results Last?

Results vary by person and by product used
Some people experience improvement for months to years
Repeat treatments are sometimes needed to maintain results

Common Bulking Agents

All are biocompatible and safe for the body:

Bulkamid® (hydrogel)
Durasphere®
Coaptite®
Macroplastique®

FAQs

Will it stop my incontinence completely?
Not always. Many people notice significant improvement, but it may not fully eliminate leakage.

Is it painful?
Most patients report only mild discomfort, with little to no pain after the procedure.

Can it be repeated?
Yes, and it often is. Repeat injections can maintain or improve results.

Will I still need pelvic floor therapy?
In many cases, combining bulking with pelvic floor exercises enhances the outcome.

Follow-Up Care

You’ll likely have a check-up within a few weeks
Let your provider know if symptoms don’t improve or if you have trouble urinating
Report any signs of infection, like burning, fever, or urgency