Is it Possible to Treat Appendicitis Just with Antibiotics and Avoid Surgery? The human appendix, previously thought to be a vestigial or evolutionary remnant has been found to play a significant role in the digestive and immune systems according to recent studies. Despite its useful functions in the body, removal of the infected appendix is recommended by doctors as untreated appendicitis can be fatal. Furthermore, its removal is not harmful to the human body........