“In these diseases, the immune system doesn’t work properly and releases inflammatory chemicals,” the Arthritis Foundation explained.
“The resulting inflammation attacks joint tissues and can cause joint swelling, increased joint fluid, cartilage and bone damage, and muscle loss.
“Nerves in the joints are also activated, causing pain.”
Delving into the details of psoriatic arthritis, the NHS elaborated by stating that this is a “long-term condition that can get progressively worse”.