Chronic appendicitis is just a common gastrointestinal disease. Generally, chronic appendicitis does not involve fever. However, a low-grade fever may occur when the inflammation in some cases of chronic appendicitis is not well-controlled. A small percentage of chronic appendicitis can acutely flare up and lead to a purulent infection, causing purulent appendicitis, which may lead to perforation of the appendix, diffuse peritonitis, septic shock, and high fever. Therefore, it is essential to actively treat chronic appendicitis, and early surgical intervention is recommended.