I have one. The second and lower stoma is hidden under the skin basically and so it doesn't have any role to play on a daily basis. I can get at it if I need to.

The main thing the lower bowel portion does...and I could sure do without it!!!...is to manufacture enormous amounts of mucus. Most don't. I still have the problem underlying the entire situation, that is Paradoxical Anal Syndrome, when it's time to have a bowel movement my sphincters close tight instead of opening up and allowing the poop out. . So I now have mucus which can't come out properly and have to resort to enemas to get rid of it. It hardens inside of my colon and becomes uncomfortable...quelle surprise you say!..and the enemas are between one week (7 days) and 41 days. Haven't come across anyone with that severe a problem. Sorry for TMI.