Greetings, Fisherman:
Between 12 and 15 years ago, I had both right and left hernia repairs. Absolutely necessary. A couple years ago, I began suffering extreme abdominal pain on the left side. It was diagnosed as nerve entrapment, i.e., a nerve had become entrapped in the mesh.
I was told that if I couldn't live with the intermittent pain, I could have a redo. That, of itself, poses difficulties. There's always risk. The pain has become so rare now that I am just "living with it."
Hope it goes well for the person in question. BTW, I'm sure there have been strides made in surgical procedure since my adventures (they were done a couple years apart).
Best regards.
CoCo