Arthritis: Inflammation and damage in the joints that can affect people of all ages

What is arthritis? Arthritis refers to more than 100 rheumatic diseases and conditions that affect joints. These conditions tend to involve pain, aching, stiffness, and swelling in and around one or more joints. The word “arthritis” means “joint inflammation.” However, inflammation may also affect the tendons and ligaments surrounding the joint. The symptoms can develop gradually…