20/11/2021
COVID-19: Advice, updates and vaccine options
COVID-19: Advice, updates and vaccine options

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Arthritis
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Overview
Osteoarthritis vs. rheumatoid arthritisOpen pop-up dialog box
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.
Osteoarthritis causes cartilage — the hard, slippery tissue that covers the ends of bones where they form a joint — to break down. Rheumatoid arthritis is a disease in which the immune system attacks the joints, beginning with the lining of joints.
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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.
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Book: Mayo Clinic on Arthritis
Types
Ankylosing spondylitis
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
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Causes
The two main types of arthritis — osteoarthritis and rheumatoid arthritis — damage joints in different ways.
Osteoarthritis
The most common type of arthritis, osteoarthritis in