Could I die if I get the lipoma from my back removed?

Very unlikely! There is more than a 99% chance you won't die from having the lipoma removed. This is a small operation just under the skin, and your doctor will likely use a local anesthetic. Why are you having it removed? I would like to say 100% you won't die, but i can't predict everything. Any surgery has risk. (the ceiling could collapse while you're in the office.) but i predict you'll be ok!