What is this bump?

[Alyssamary3]

This just appeared recently under her vent. Any idea what it is? She doesn’t appear to be in pain, she’s acting normally, and still laying. Any thoughts? What should I do?

 

[Eggcessive]

Is that below her vent, and not a prolapse? I would separate her in case the others peck at it for now. Can you get a close up of the bump? I don’t know if it is a tumor or what.

 

[Alyssamary3]

It is below her vent. She’s hard to get a picture of. Could it be a hernia?