Will Falconer, DVM Moderator
Hi Julie, I don't know as I've ever seen an end other than euthanasia with these guys. At some point, owners realize life is not worth going forward further on, the disease is incurable, the dog is embarrassed (some are, some aren't) or hates diapers, etc, etc. It ends up being a quality of life issue.
So, I've really never know what "the end" looks like if left alone. I know it's not painful, paralysis is just a numbness, and if I had to guess, it could progress so far up the spine as to make digestion or even respiration impossible.