I'm so so sorry!
I would put this hen down immediately.

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Oh boy.
I'm so so sorry!I would put this hen down immediately.
How does something like this happen?
Oh no! I just want to chime in and mention that this is nothing that is the result of something you have done or neglected to do in her care. Prolapses just happen sometimes, and bad ones such as this, generally cannot be fixed. It is nothing that is contagious or dangerous to other birds in your flock either. Hang in there. It's not always easy being a chicken parent, but you got this.
I'm so sorry, but you are doing the right thing for her.I am going to euthanize my girl. She is suffering....
I am worried about the others what do I need to do.
Plan to take each in and wash bottoms and look them over...they all seem fine....now.
Dont know what caused this so I could use advice in what to do next.
They free range in the yard for a bit each day.
Have sand in the bottom of run.
Eat pellets and small amount of scratch.
Some fruit and veggie scraps occasionally.
Coop is clean.