Introduction

A medical condition is an injury, illness or disease. The definition also includes psychiatric illness

A disease is an abnormal condition of an organism that impairs bodily functions and is associated with specific symptoms and signs.

In human beings the word disease is often used more broadly to refer to any condition that causes extreme pain, dysfunction, distress, social problems, and/or death to the person afflicted, or similar problems for those in contact with the person. In this broader sense it can sometimes includes injuries, disabilities, disorders, syndromes, infections, isolated symptoms, deviant behaviors, and atypical variations of structure and function, while in other contexts and for other purposes these may be considered distinguishable categories.