@mutsutakashi If you go back to the earlier chapters, you can see that he bandaged them up (off-screen). And at this point, it's been a couple weeks since he got his fingers chopped off, so he probably doesn't need to worry about bloodloss anymore.
By the way, the weird chicken hybrid in chapter 20.5 should be called a "semi-human", not a pure human. The reason why I messed it up is because the furigana reading is the exact same for both, just with slightly different kanji. It's fixed now.
So just for clarity's sake:
Weird chicken hybrid...