Tumor on it's butt???

[LauraCTChick]

I just had a hatchling pop out of its shell and it looks like it has a tumor on its butt! Maybe it's just its belly button? I can't really tell, it just popped out but has the cutest little black eyes, like somebody hauled off and popped him in the beak.

Suggestions?

 

[Kittymomma]

It's probably just below the vent and my guess is that it's some unabsorbed yolk. It will often absorb and be fine after a day or so, but you need to make sure it isn't getting hung up on anything or getting picked at because that will kill the chick. I've read where people have been able to push it back in and either seal it with super glue or use a bandaid or vet wrap, but I haven't done it myself so don't know how well those options will work.