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Arthritis

life science Maturity 11-13 Vital Level 3 Next article →

Arthritis is a word for joint problems.

Osteoarthritis in the left hand index finger
Osteoarthritis in the left hand index finger

Joints are where two bones meet. They have a smooth layer called cartilage. This layer stops bones from rubbing together. In arthritis, this layer is lost. Then, bone rubs on bone. This can cause pain and stiffness. It can also cause swelling, redness, or warmth.

There are different types of arthritis. Osteoarthritis is the most common type. It often happens as people age. It usually affects hips, knees, and fingers.

Varus Knee Osteoarthritis Xray
Varus Knee Osteoarthritis Xray

This type comes from wear and tear.

Another type is rheumatoid arthritis. This is an autoimmune disorder. This means the body's immune system attacks its own parts. It often attacks the joint lining. This can cause swelling and pain in the hands and feet.

X-ray of right fourth PIP joint with bone erosions by rheumatoid arthritis
X-ray of right fourth PIP joint with bone erosions by rheumatoid arthritis

Some people also get gout. Gout happens when too much uric acid builds up. This makes crystals form in the joints. It often affects the big toe.

Gout Signs and Symptoms
Gout Signs and Symptoms

Other diseases like lupus can also cause joint pain. Lupus can even cause a skin rash.

Lupusfoto
Lupusfoto
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🖼️ Images & Media (5)
File:Osteoarthritis in the left hand index finger.jpg
Osteoarthritis in the left hand index finger.jpg
File:Varus Knee Osteoarthritis Xray.jpg
Varus Knee Osteoarthritis Xray.jpg
File:X-ray of right fourth PIP joint with bone erosions by rheumatoid arthritis.jpg
X-ray of right fourth PIP joint with bone...
File:Lupusfoto.jpg
Lupusfoto.jpg
File:Gout Signs and Symptoms.jpg
Gout Signs and Symptoms.jpg
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