An individual suffering from psoriasis may also have psoriasis arthritis. Knowing the symptoms is crucial psoriasis arthritis details you need to have. One of the common symptoms of psoriasis arthritis is the swelling of fingers and toes. Foot pain is another common symptom and the pain as its highest at the sole of the foot or at the back of the heel. As a result of psoriasis arthritis, some patients develop a condition called spondylitis, or the inflammation of the joints between the vertebrae of the spine and the joints between the spine and the pelvis. Psoriasis arthritis should never be ignored and it is best to consult the doctor for an immediate action before psoriasis arthritis permanently damages your joints.