Medical prosthetics. I lost the face and the leg when the medical friget I was serving on took a hit. Got trapped under a beam of superheated metal. The hand was a few years later when my x-wing got shot down, and the spleen was shrapnel a few months before I got here. Most injuries can be repaired with bacta. It's a liquid we use back home that encourages cell regrowth. I'm allergic to it.