Chronic appendicitis is a common gastrointestinal disease. Whether chronic appendicitis causes fever depends on the control of the inflammation. Most cases of chronic appendicitis do not involve fever, but some cases may exhibit a low fever when the inflammation is not well controlled. A very small percentage of chronic appendicitis cases can undergo acute episodes and develop suppurative infections, leading to perforation of the appendix and diffuse peritonitis, septicemia, and septic shock; in such acute episodes of chronic appendicitis, a high fever can occur.