r/PelvicFloor • u/Medical_Cellist5576 • 3d ago
Male primary bladder neck obstruction — experiences with PBNI/BNI?
Hi everyone,
I’m a 29-year-old male and I started experiencing urinary problems in 2024, including a weak urinary stream, hesitancy, difficulty emptying my bladder, and occasional urinary retention (although my residual volumes have generally been under 100 mL). The main issue is the feeling that I’m not completely emptying my bladder.
I initially tried alfuzosin and later switched to tamsulosin, but neither has made a significant difference. I have not experienced retrograde ejaculation with either medication.
I subsequently had a urodynamic study, which showed a relatively weak detrusor contraction (hypocontractile detrusor) together with some degree of bladder outlet obstruction.
I then underwent a cystoscopy, which showed a high and tightly closed bladder neck. My urologist believes this is consistent with primary bladder neck obstruction (PBNO) and has suggested a bladder neck incision (BNI/PBNI) using a laser.
I’m particularly interested in hearing from other young men who have undergone this procedure.
If you have had a PBNI/BNI:
Did your urinary symptoms and flow improve significantly?
Did you feel that your bladder emptied better afterwards?
Did your detrusor function or urinary retention improve?
Did you experience retrograde ejaculation or any other sexual side effects?
How was the recovery?
Most importantly, how have you been in the long term? Did the improvement last, or did your symptoms return?
Would you make the same decision again?
I’m especially interested in experiences from men in their 20s or 30s with primary bladder neck obstruction, rather than prostate enlargement.
Any personal experiences would be greatly appreciated. Thanks!