My dad has had a similar hernia for several months now and they won't fix it. The specialist here said that they won't fix it for several reasons:
1. Risk of infection
2. Risk of serious bleeding complications during surgery
3. When his ascites returns, like it always does, the repaired hernia is likely to come out again, or he will get another one.
The doctor explained that #3 is the most common occurance. He said the only way they would fix the hernia is if he was in servere pain, or it was causing other complications.