You never know what you’ll find in your family tree. If close relatives have psoriasis or psoriatic arthritis (PsA), your chances of getting either or even both just swung up a notch. About 40 percent of people with psoriasis or psoriatic arthritis have family members with psoriasis or psoriatic arthritis. A close relative of someone with psoriatic arthritis is therefore about 50 times more likely to develop PsA than someone who is not related.
Recent research has discovered certain genetic markers that appear to be associated with PsA, which could help to explain how the condition passes from parents to children.
of people with psoriatic arthritis have close relatives with PSA or psoriasis.
Dr. Nancy Maltez explains that having close family members with psoriasis or PsA doesn’t mean you will necessarily get it too, but it can be a clue to confirm a diagnosis.