Living With a Catheter From BPH? How Aquablation Helps Men in Urinary Retention
Quick answer: Yes, Aquablation can help men in urinary retention get off their catheter. The original FDA trials excluded men in retention, but later studies filled that gap. In a 113-man study published in Urology in 2023, 98% of men with acute or chronic retention were voiding on their own at an average of five months. A separate series reported 97% (38 of 39 men) catheter-free. Men in retention typically keep their catheter a bit longer after surgery than other patients.
If you suddenly can't urinate at all, go to the nearest emergency room. Acute urinary retention needs prompt care.
What is urinary retention?
Urinary retention means the bladder can't empty properly. With BPH, the enlarged prostate squeezes the urethra until urine can't get past.
- Acute retention is sudden. You can't urinate at all, it's painful, and you need a catheter right away.
- Chronic retention builds slowly. You still urinate, but a large amount stays behind. Urologists typically flag a post-void residual above 300 mL.
Men in retention often end up with an indwelling (Foley) catheter or learn to self-catheterize several times a day.
Why isn't a catheter a long-term answer?
A catheter solves the immediate problem but brings its own:
- Repeated urinary tract infections
- Bladder stones and irritation
- Injury or scarring of the urethra
- A real hit to daily life, from travel to intimacy to sleep
Medication doesn't always get men off the catheter. According to research cited in a 2022 study of Aquablation in retention, 38% to 52% of men who develop acute retention from BPH fail to come off the catheter with medication alone.
What does the research show?
The 2023 Urology study. Researchers reviewed 113 men who had Aquablation, including 28 in acute retention and 16 in chronic retention. Among the men with retention, 98% were voiding spontaneously at an average five-month follow-up. Complications, symptom scores, and flow measurements were no different from men who were never in retention.
The 2023 International Continence Society abstract. In another series, 25 men had a catheter before surgery (14 with a Foley and 11 self-catheterizing, for an average of seven months) and 14 more had chronic retention. Of those 39 men, 38 (97%) were voiding without a catheter afterward, and complication rates didn't rise.
The same researchers noted that because Aquablation better preserves sexual function than resection or enucleation with electrocautery or laser, it's an attractive option for sexually active men in retention.
What's different about recovery if I'm in retention?
The main difference is catheter time. A bladder that has been stretched needs time to recover its squeeze.
In the 2023 study, men took an average of:
| Before surgery | Days until voiding without a catheter |
|---|---|
| Acute retention (catheter-dependent) | 14 |
| Chronic retention (high residual) | 7 |
| No retention | 4 |
Some surgeons keep the catheter in for about seven days after surgery for men who were catheter-dependent, compared with about two days for others. Dr. Tallman will set your plan based on your bladder.
Does bladder strength matter?
Yes. If the bladder muscle has been weakened by long-term obstruction, removing the blockage helps but may not fully restore emptying. That's why Dr. Tallman may recommend urodynamic testing, which measures how well your bladder contracts, before surgery. Encouragingly, the 2023 study found 98% success regardless of preoperative urodynamic findings.
Does prostate size matter?
Retention is more common with larger glands. In a 2025 study of 628 Aquablation patients, catheter dependence was higher among men with prostates of 80 cc or more. Aquablation treats large prostates in roughly the same resection time as small ones, so a big gland doesn't rule you out. See Aquablation for Large Prostates.
The bottom line
If you've been told you'll need a catheter indefinitely, get a second opinion from a surgeon who treats men in retention with modern options. Many men in exactly your position are now voiding on their own.
Frequently Asked Questions
Can Aquablation get me off my catheter?
For most men, yes. Published studies report that 97% to 98% of men in acute or chronic urinary retention were voiding without a catheter after Aquablation.
How long will I have a catheter after Aquablation if I was in retention?
Usually longer than men who weren't in retention. In one study, catheter-dependent men averaged 14 days before voiding on their own, compared with 4 days for men without retention. Your surgeon sets the timing.
I self-catheterize. Am I a candidate?
Men who self-catheterize were included in the published retention studies and had high success rates. Dr. Tallman will evaluate your bladder function to confirm you're a good fit.
Do I need urodynamic testing before Aquablation?
It's often recommended for men in retention because it shows how strongly the bladder contracts. Dr. Tallman will tell you whether you need it.
What should I do if I suddenly can't urinate?
Go to the emergency room. Sudden inability to urinate is acute urinary retention and needs prompt treatment, usually with a catheter.
Ready for Life Without BPH?
Schedule a consultation with Dr. Tallman. In one appointment you'll understand your options, get a prostate assessment, and learn whether Aquablation therapy is right for you.
References
- Burton C, et al. Outcomes of Aquablation in men with acute and chronic urinary retention. Urology. 2023. doi:10.1016/j.urology.2023.06.028
- Comparing outcomes in men with and without urinary retention undergoing Aquablation. International Continence Society Annual Meeting, 2023, Abstract 119.
- Technique, outcome and changes in prostate dimensions in patients with urinary retention managed by Aquablation. 2022. PMC9136199.
- The impact of prostate size on outcomes of Aquablation: a prospective study (2023 to 2025 cohort).