What does the suffix "itis" indicate in medical terminology?

The suffix "itis" in medical terminology specifically denotes inflammation. This term is commonly used to describe conditions affecting various parts of the body, where inflammation is a key component. For instance, appendicitis refers to inflammation of the appendix, and arthritis indicates inflammation of the joints. The presence of "itis" indicates that the condition involves swelling, redness, warmth, or pain, all of which are hallmarks of an inflammatory response.

While "itis" often occurs in the context of an infection, it is important to note that not all inflammatory conditions are caused by infections. Inflammation can arise from various factors, including autoimmune diseases, physical injuries, or allergic responses. Therefore, it's essential to recognize that "itis" directly relates to inflammation itself rather than solely indicating an infectious process.