Arthritis is the swelling and tenderness of one or more joints. The main symptoms of arthritis are joint pain and stiffness, which typically worsen with age. The most common types of arthritis are osteoarthritis and rheumatoid arthritis.
Uric acid crystals, which form when there's too much uric acid in your blood, can cause gout. Infections or underlying disease, such as psoriasis or lupus, can cause other types of arthritis.
Treatments vary depending on the type of arthritis. The main goals of arthritis treatments are to reduce symptoms and improve quality of life.
Types
- Gout
- Juvenile idiopathic arthritis
- Osteoarthritis
- Psoriatic arthritis
- Reactive arthritis
- Rheumatoid arthritis
- Septic arthritis
- Thumb arthritis
Symptoms
The most common signs and symptoms of arthritis involve the joints. Depending on the type of arthritis, signs and symptoms may include:
- Pain
- Stiffness
- Swelling
- Redness
- Decreased range of motion
Causes
The two main types of arthritis — osteoarthritis and rheumatoid arthritis — damage joints in different ways.
Risk factors for arthritis include:
- Family history. Some types of arthritis run in families, so you may be more likely to develop arthritis if your parents or siblings have the disorder.
- Age. The risk of many types of arthritis — including osteoarthritis, rheumatoid arthritis and gout — increases with age.
- Your sex. Women are more likely than men to develop rheumatoid arthritis, while most of the people who have gout, another type of arthritis, are men.
- Previous joint injury. People who have injured a joint, perhaps while playing a sport, are more likely to eventually develop arthritis in that joint.
- Obesity. Carrying excess pounds puts stress on joints, particularly your knees, hips and spine. People with obesity have a higher risk of developing arthritis.
Complications
Severe arthritis, particularly if it affects your hands or arms, can make it difficult for you to do daily tasks. Arthritis of weight-bearing joints can keep you from walking comfortably or sitting up straight. In some cases, joints may gradually lose their alignment and shape.
