Sacroiliac Joint Pain
The Sacroiliac Joint (SIJ) is a term used to describe the place where the sacrum and the iliac bones join.
- The sacrum is located at the base of your spine. It is made up of 5 vertebrae, or backbones, that are fused together.
- The iliac bones are the two large bones that make up your pelvis. The sacrum sits in the middle of the iliac bones.
Major reasons for pain around the SIJ include:
- Pregnancy. The pelvis widens to prepare for birth, stretching the ligaments (strong, flexible tissue that connects bone to bone).
- Different types of arthritis.
- Difference in leg lengths.
- Wearing away the cartilage (cushion) between the bones.
- Trauma from impact, such as landing hard on the buttocks.
- History of pelvic fractures or injuries.
- Muscle tightness.
Read more at: https://medlineplus.gov/ency/patientinstructions/000610.htm
