Although it commonly arises from trauma, osteoarthritis often affects multiple members of the same family, suggesting that there is hereditary susceptibility to this condition. A number of studies have shown that there is a greater prevalence of the disease between siblings and especially identical twins, indicating a hereditary basis. Up to 60% of OA cases are thought to result from genetic factors. Researchers are also investigating the possibility of allergies, infections, or fungi as a cause.
Factors that might cause it include:
- Being overweight
- Getting older
- Joint injury
- Joints that are not properly formed
- A genetic defect in joint cartilage
- Stresses on the joints from certain jobs and playing sports.
Further Reading
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"Osteoarthritis"
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