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Every time you move a limb, a joint goes on duty.
Joints have protective padding—cartilage, membranes, and fluid—that keeps the ends of bones from rubbing against each other.
But, in people with osteoarthritis, the protection breaks down. The cartilage erodes.
Sometimes bone spurs form.
Fluid builds up in the joint, making it feel swollen and stiff. The bones rubbing together cause pain.
Knees take a lot of stress, so they are vulnerable to arthritis. But other joints are affected, too. Osteoarthritis can strike in the:
- Feet,
- Hands,
- Hips,
- Spine,
- and Neck.
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