What does the suffix "itis" indicate?

The suffix "itis" denotes inflammation in a specific area or organ within the body. It is commonly used in medical terminology to signify conditions characterized by swelling, redness, heat, and pain, which are typical symptoms of inflammation. For example, terms such as "appendicitis" refer to inflammation of the appendix, while "arthritis" refers to inflammation of the joints. Understanding this suffix is crucial for recognizing and interpreting various medical conditions, as it provides insight into the nature of the disease or disorder being discussed.