Causes of arthritis
Different arthritis diseases have different causes. A buildup of urate crystals in a joint causes gout. Some arthritis diseases—like lupus, rheumatoid arthritis and scleroderma—are autoimmune diseases, which occur when the immune system goes haywire and attacks healthy body tissues. Some, like ankylosing spondylitis, are genetic.
Who is at risk of arthritis?
While some of the causes—like age and genetics—can't be controlled, other risk factors can. Being overweight or obese means extra wear and tear on the joints, especially the knees.
When exercising or playing sports, take steps to prevent injury, since a joint that has been injured is more likely to develop arthritis down the line. Taking rest days can help you put less stress on your joints and avoid overuse injuries.
What does arthritis feel like?
Arthritis feels like a joint pain that doesn't go away. If it does go away, it often comes back after time.
Your joints may feel stiff or creaky, especially first thing in the morning. It might be tough to move in some of the normal ways you're accustomed to moving. The joint may feel warm or look red.