Arthritic psoriasis is a kind of arthritis caused by psoriasis, which in the professional field should be called psoriatic arthritis or what the people call psoriatic arthritis. Psoriasis is an autoimmune disease that belongs to the seronegative spondyloarthropathies. It usually has skin lesions, which are what we call psoriatic changes, and once it involves joint lesions, such as sacroiliac, hip, knee and ankle joints, it is called psoriatic arthritis. Patients will experience pain in the joints, as well as redness and swelling, stiffness and swelling of the joints, and a series of phenomena such as significant restrictions on the patient’s movement.