I've been living without a large intestine for 4.5 years. They re-purposed part of my small intestine to create an internal pouch. AMA.
After suffering from Ulcerative Colitis for roughly 5 years, I reached a point where I had exhausted all available pharmaceutical options. My weight had continued to drop and my most recent stay at the hospital lasted over two weeks. My gastroenterologist suggested I pursue a J-Pouch surgery process as a last resort. 10 months and 3 surgeries later I now have an internal pouch that holds waste until I go to the bathroom. As a result of this radical surgery I am even healthier now than I was prior to being originally diagnosed. AMA.
EDIT: I'm signing off for Super Bowl festivities. Feel free to post any further questions and I'll check back later. Thanks for all the responses!!!!