In fact, 1 out of 3 people with psoriasis will also experience joint symptoms, which is referred to as psoriatic arthritis. Since they can occur together, inflammation is believed to be a common source. However, one condition does not necessarily cause the other—either psoriasis or psoriatic arthritis can present itself first. Also, the severity of one does not determine the severity of the other. This means you can have severe psoriasis, but moderate psoriatic arthritis, or vice versa.
It is important to talk to your dermatologist or rheumatologist about any symptoms you are experiencing so they can appropriately manage your care.