Please respond with details if you have bladder diverticuli and have had
problems that may have been related to taking Flomax.  Briefly, my situation
is that I had urinary retention problems. An ultrasound scan confirmed
urinary retention.  The urologist put me on Flomax.  The urinary retention
problem vanished within 10 days, but came back about a week after that.  At
the time when the urinary retention returned I began to have horrid pains in
my lower bowels, a feeling like things moving about in my scrotum and a need
to defaecate about 5 times  day instead of the usual once. At night I would
wake up with severe cramp pains in the rectum and find my lower abdomen
covered in sweat.  Often, I felt as if my lower abdomen had filled up with a
ballon of really hot blood. And so on...
My GP could find nothing in his drug literature that suggested a drug
induced problem. The urologist thought  it strange. My pharmasist did not
think a link with the Flomax was ever suggested. My GP tried two other
medications that worked via the same mechanism as Flomax and I had the same
problem.  Stopping these drugs resulted in all my symptoms (except urinary
retention) going away.
After one year on the Flomax I had a second ultrasound scan and two large
diverticuli were found on my bladder, with the result that I now need
surgery to remove them.
I can't help wondering if the Flomax was responsible, perhaps by relaxing
already weakened tissue in the bladder and allowing it to stretch and
ballon. I have no idea and would love to hear from others with similar
problems.  Thanks