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Rheumatoid arthritis RA is a systemic disease that attacks multiple joints throughout the body. About 90% of the people with rheumatoid arthritis eventually develop symptoms related to the foot or ankle. Usually, symptoms appear in the toes and forefeet first, then in the rear foot or the back of the feet, and finally in the ankles. The exact cause of RA is unknown, but there are several theories. Some people may be more likely to develop RA because of their genes. However, it usually takes a chemical or environmental "trigger" to activate the disease. In RA, the body's immune system turns against itself. Instead of protecting the joints, the body produces substances that attack and inflame the joints.
The most common symptoms of RA in the foot are pain, swelling, and stiffness. Symptoms usually appear in several joints on both feet. You may feel pain in the joint or in the sole or ball of your foot. The joint may be warm and the way you walk may be affected. You may develop corns or bunions, and your toes can begin to curl and stiffen in positions called claw toe or hammer toe. Because RA affects your entire system, you may also feel feverish, tire easily, and lose your appetite. You may develop lumps around your joints, particularly by the elbow.
If your rear foot and ankle are affected, the bones may shift position in the joints. This can cause the long arch on the bottom of your foot to collapse, resulting in pain and difficulty walking. Patients suffering from Rheumatoid arthritis in the feet will often benefit from custom made orthotics to help hold the foot in a better position which helps minimise your pain, you should visit a Podiatrist if you suffer from Rheumatoid arthritis.
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Page last updated 14 October, 2007