What's the difference symptom wise between appendicitis and burst appendix?

Very similar.: ruptured appendix starts off as appendicitis. Perforation also known as a rupture occurs when it's allowed to progress to end-state and hasn't been treated prior to that time. patients with perforation may present with higher grade fevers and signs of sepsis, but this is not necessarily the case for every patient. It is hard to differentiate the two based on symptoms and physical examination