Arthritis is a common condition that causes pain and inflammation in a joint.
In the UK, around 10 million people have arthritis. It affects people of all ages, including children (see below).
The symptoms of arthritis you experience will vary depending on the type you have.
This is why it’s important to have an accurate diagnosis if you have:
joint pain, tenderness and stiffness
inflammation in and around the joints
restricted movement of the joints
warm, red skin over the affected joint
weakness and muscle wasting