What are the causes of psoriatic arthritis?
Psoriatic arthritis (PsA) is a chronic inflammatory disease that attacks both your skin and your joints.
Causes of psoriatic arthritis
- Abnormal response of immune system: the immune system overreacts and mistakenly attacks healthy cells and tissues in the joints as well as in the skin.
- Psoriasis. People who have psoriasis lesions on their nails are especially likely to develop psoriatic arthritis.
- Your family history. Many people with psoriatic arthritis have a parent or a sibling with the disease.
- Your age. Although anyone can develop psoriatic arthritis, it occurs most often in adults between the ages of 30 and 50.
- Environmental factors. Under some circumstances for a long time, people are likely to have weakened immunity and susceptible to several diseases.
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