Basically a Stoma is an extra opening that they put in with a collection bag when they have to remove the bladder, or significant bits of the bowel. There are quite a few organisations out there that offer really good advice and help including specialist nursing help and good practical support. they are collectively covered by the Australian Council of Stoma Associations - http://www.australianstoma.com.au/
I don't have one, but have from time to time been confronted with the [possibility and so found out as much as possible.
My mother had bladder cancer and had her bladder removed and a stoma put in place. As sailor said it's an extra opening that a collection bag is attached to. I don't know much about my mother's experience with it because she didn't talk much about it. The operation was a major one but my mother recovered quicker than expected. At first she needed help from the nurses to change her bag but after a while she could change it herself. The only downside is that it did leak occasionally but that was usually during the night when she was sleeping and got it twisted up.
Cancer Council NSW would like to acknowledge the traditional custodians of the land on which we live and work.We would also like to pay respect to elders past and present and extend that respect to all other Aboriginal people.