Arthritis starts when the protective cartilage that covers the ends of the bones wears down. This can be caused by aging, overuse of joints, injury, obesity, diet, and autoimmune disorders. When the cartilage wears away, bones start to rub together, leading to arthritis symptoms of inflammation and pain.
The most common limbs affected by arthritis are:
- Hands
- Elbows
- Wrists
- Shoulders
- Hips
- Knees
- Ankles
- Feet