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Causes of sacroiliac pain

Sacroiliac joints

The sacroiliac joints are those joints that connect the lower spine and pelvis. The connection of the sacrum and two iliac bones forms these joints. The sacrum is a bone that is not the mobile and that is placed below the lumbar spine. The pelvis is formed of two iliac bones.

The sacroiliac joints only move slightly in the areas at the hips and the lumbar spine but they are very important for our body because when we are in a standing position, they support the weight of our whole body. Because of this, the wearing of the cartilage of the SI joints and arthritis are not unusual.

Sacroiliac joint dysfunction

If a pain occurs in the sacroiliac joints, it can be caused by numerous and various reasons. However, when it occurs, it is usually stated as sacroiliac joint dysfunction or sacroiliac joint syndrome. Furthermore, sacroiliac joint strain and sacroiliac joint inflammation are also some of the terms that are usually used for the incidence of pain in these joints.

Causes of sacroiliac joint dysfunction

Each bone in our body has its own protection or cartilage layer that covers the bone. This layer is very important because it enables the smooth movement between the bones. However, if it is damaged, the bones start to rub against each other and it leads to the occurrence of bone disorders, such as osteoarthritis. Therefore, the damage of cartilage layer is one of the most frequent causes of sacroiliac pain.

The pain in the sacroiliac joints may appear because of pregnancy, too, because in pregnancy, the sacroiliac joints have to loosen and straight to accommodate the delivery. Furthermore, changed gait and added weight make pressure on the joints and may cause abnormal wear.

The pain in the sacroiliac joints may be caused by some traumatic injury.

There are also many conditions that can lead to the appearing of the uncomfortable sacroiliac pain; for example, if a person has one leg shorter than the other, or if a person has pain in the knee or hip or ankle.

Certain medical conditions are responsible for the incidence of the pain in the sacroiliac joints, such as gout and rheumatoid arthritis, as well as psoriasis and ankylosing spondylitis.

The inflammation of one or both sacroiliac joints is medically called sacroilitis. This condition is characterized by the pain in the lower back that may spread out along one or both legs in some severe cases.


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