Why Do We Need To Get Your Gull Bladder What Could Happen With A Stone In Your Gull Bladder? READ DESCRIPTION?

What could happen with a stone in your gull bladder? READ DESCRIPTION? - why do we need to get your gull bladder

My grandmother has a stone in the bladder and the gull is seen in the hospital for a few days, what's the worst that could happen? How is it possible to die from an operation or other adverse effects or consequences? Thank you for your help:)