Hi, Estrogen.
I've had colitis, but not cancer.
After almost 9 years, my colitis was so bad and widespread in my diseased colon that I ended up in the hospital with C. diff. Post-antibiotics, I decided to have my entire colon removed and now have an ileostomy. My worries over incontinence are over. I consider my second chance a blessing, and having a bag attached to my abdomen is much less of an issue than being up 22 times to use the bathroom in one night (at the worst of the U.C.). Deciding to have the proctocolectomy with end ileostomy surgery was emotionally tough for me, as I had worked long and hard to find my personal "silver bullet" or cure, certain I could avoid surgery, offered at the time of my diagnosis as "the only cure." Ultimately, my enteric brain decided to fight every attempt I made to get it back to health and full function, and when it was done, it was DONE.
With "no guarantee that the colitis would be gone," it sounds as though you still have at least part of your colon and/or your rectum in place, as colitis only occurs there. But, you are currently asymptomatic with the U.C., correct? If you remember your specific symptomology, you can consider keeping your ostomy and perhaps put off a second surgery (ostomy reversal) until you experience signs of U.C. again. With blessings, you may never need that second surgery. :) With the ostomy, if your colon develops ulcerations again, you could have "just" a second surgery for a proctocolectomy, rather than go through a reversal (#2) and then possibly a proctocolectomy due to recurrence of U.C. (#3). I hope that all makes sense.
Pay attention to your body's responses, as it doesn't lie. Stay in contact with your medical teams, and do what you're able to prevent the recurrence of U.C.
Only you can decide what your priorities are, and it sounds like you have time to consider them.
Yes, please let us all know what you decide. Thankfully, it sounds as though there is no rush to make that choice now.
Be well.
Lily17