When a woman is catherized, its a short trip, but much more difficult to insert. With men, regardless of penis length, it's a much longer path, though with curves involved, and the entrance point is easier to access in most cases.
My uro is not big on self-cath for post Prostate Surgery guys, for the reason stated above, the juncture of the urethra and bladder neck has changed greatly from your pre-surgery state. My doctor believes, that after a dialation, keeping a cath in place for weeks, or longer in my case, allowed better healing and prevented closure in general, and to avoid me hurting myself in the process, making things worse. My case was extreme, I admit, and doctors choose to do things their own way of course.
Two times as the result of severe strictures, I had to have two caths in me at the same time. Sounds amazing, but true. I had the suprapubic catheter coming out of my skin to the left of my navel, to urinate with. And a regular foley catheter in my penis to try to keep the opening, open. The longest I wore two was for 15 days, and there is no way to describe the pain.
Most stricture events can be cured in 2-3 attempts, i.e. Pigeon Flyer and Subic Squid here. Once they were finally fixed, no more problems. In a smaller percentage of men, it becomes a chronic condition, and difficult to control.
My record from being closed to open to back to being 100% closed was less than 30 days, despite having a laser correction as a day surgery. In that short of time, my body scarred the opening completely within weeks. My uro said he had never seen that happen so fast. He showed me photos before and after, and it was incredible that it could have closed so quickly.
And back to self-cathing, the catheters are tiny in diameter compared to a regular cath, and many doctors will give the patient lydacine gell to numb the opening to take to edge off of inserting the cath. That can help a lot if you have to do that.
I wish you the best overcoming this situation, and hope that it is short term, and not chronic.
David in SC
Age: 58, 56 dx, PSA: 7/07 5.8, 10/08 16.3
3rd Biopsy: 9/08 7 of 7 Positive, 40-90%, Gleason 4+3
open RP: 11/08, on catheters for 101 days
Path Rpt: Gleason 3+4, pT2c, 42g, 20% cancer, 1 pos margin
Incont & ED: None
Post Surgery PSA: 2/09 .05,5/09 .1, 6/09 .11. 8/09 .16
Post SRT PSA: 1/10 .12, 4/8 .04, 8/6 .06, 2/11 1.24, 4/11 3.81
Latest: 6 Corr Surgeries to Bladder Neck, SP Catheter since 10/1/9, SRT 39 Sess/72 gy ended 11/09, 21 Catheters, Ileal Conduit Surgery 9/10