Definition: Inflammation of a joint or joints causing pain and/or disability, swelling and stiffness, and due to various causes such as infection, trauma, degenerative changes or metabolic disorders.

Alright class, settle down now, let’s take a look today, At a word that can cause some worry, in a special kind of way. It's arthritis , you see, and it’s important to know, What this word really means, so let our knowledge grow! The dictionary tells us, with careful detail, That arthritis is trouble, a painful trail. (Rhyme Time!) “Inflammation of a joint or joints,” it states, “Causing pain and disability – sealed by fate!” It brings about swelling, a puffy surprise, And stiffness that limits your movements and size. Now, why does this happen? Let’s consider with care, It can come from infections, or injuries we bear. (Let's break it down further!) Degenerative changes occur, Like wear and tear on joints – a bit of a blur! And metabolic disorders too, you see, Can cause this condition for you and me. So, arthritis is complex, a tricky disease, Affecting our joints with discomfort and ease... or rather, dis ease! Do you have any questions about what we've discussed? Let’s talk it through – are there any points that need review?