The symptoms of sacroiliac arthritis manifest as lower back pain and impaired mobility, sometimes with stiffness. The pain may manifest itself in different locations depending on individual differences or disease conditions. Sacroiliitis is an inflammation of one or both sacroiliac joints. Sacroiliitis can cause pain in the hip or lower back and may extend down one or both legs. The pain can be made worse by standing for long periods of time or climbing stairs. This condition is related to irritation of the nerves that pass around the sacroiliac area. Pain associated with sacroiliac arthritis most often occurs in the buttocks and low back. It can also affect the legs, groin and even the feet. Some conditions can lead to increased pain, and standing can lead to increased pain from sacroiliitis. These typical areas of pain are related to the direct irritation of the inflammation. During the course of sacroiliitis, there is also an impaired movement of the hips or lower back. This movement is not due to structural defects that occur as a result of damage to the somatic structures. It is mainly due to the fact that the pain occurs after activity in these areas and is only relieved once the activity is stopped. The pain appears or worsens after activity is started. When sacroiliitis is effectively treated, the symptoms of impaired movement can cease immediately. Sacroiliitis primarily causes painful discomfort around the sacroiliac joint and even in the lower extremities. Peripheral movement disorders due to pain control purposes can also occur.