What is the disorder of decubitus ulcers

It’s not really a disorder it is a factor of underlying diseases that cause you to be bed ridden or immobile decubitus ulcers can become very deep i have seen these in the operating room many times they become infected, leak pus and must be cleaned out they are nasty i’ve seen someone in a bed ridden coma have one that tunneled to his sacral bone turn your patients and loved ones if they are bed ridden