The coming of age in a group of werewolves is the first transformation. Some will transform properly and some will die in the process. However there are some who get stuck in between their human and wolf form and are unable to change back. This can also occur if they attempt to reverse their lycanthropy with tainted wolfsbane. Those stuck in between are usually banished from the pack to fend for themselves, as they will bring unnecessary danger of discovery.
However, I've come to doubt that those stuck in between could even survive. I have reason to believe that they'd simply drop dead after a few hours in such an extreme condition, if not killed off by predators. Would it be possible for them to live, even if they are severely disabled? Or are the differences between the biology of wolves and humans so different that they would die?