What is the inflammation of joints called?

The inflammation of joints is called arthritis. It is a common condition that can affect people of all ages, but it is most common in older adults. Arthritis can cause pain, stiffness, swelling, and redness in the joints. It can also lead to disability and loss of function. There are many different types of arthritis, but some of the most common include osteoarthritis, rheumatoid arthritis, and psoriatic arthritis.