The above commenter is correct. Our sweet Reba passed away last week from this condition. We first noticed her bulge in July, so the fact that she made it until November is pretty incredible. She continued laying until her molt. It was after her molt that while passing a large egg (all of hers were huge) that she laid her entrails as well. We immediately took her to the vet to have her put down. It was terrible to loose our family pet, but I'm so grateful for the year and a half we had with her.
Just read your post and I am so sorry about Reba. We have Miss Rustie who has a bulge also. I had her in the house for the past 3 days giving her sitz baths and massaging the bulge towards her vent, but nothing happens. I checked her vent no egg that i could tell and tried draining and got nothing but air. I was so into the ascites and forgot about hernias. Going to read more on them. Thank you so much for posting your thread it was very helpful. I put Miss Rustie back out in the coop with the rest hoping she does better with moving around. I would like to see her last until spring/summer so she can start free ranging again. And again to you sorry about Reba.