Psoriatic arthritis is arthritis caused by inflammation and swelling from psoriasis. Studies have shown that up to 30 percent of people with psoriasis will develop psoriatic arthritis.

This condition can be mild or severe and even a relatively minor case of psoriasis can cause significant arthritic symptoms, which typically occur during flare-ups.

Because psoriatic arthritis flare-ups can be incredibly intense, it’s critical to know potential triggers. We’ve outlined 13 of the most common causes of psoriatic arthritis so you’re prepared before your next flare-up!